Ansel 0.0
A darktable fork - bloat + design vision
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Data Structures | Macros | Typedefs | Enumerations | Functions | Variables
toneequal.c File Reference
#include "common/extra_optimizations.h"
#include <assert.h>
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "bauhaus/bauhaus.h"
#include "common/darktable.h"
#include "develop/masks.h"
#include "common/fast_guided_filter.h"
#include "common/eigf.h"
#include "common/interpolation.h"
#include "common/luminance_mask.h"
#include "common/opencl.h"
#include "common/collection.h"
#include "control/conf.h"
#include "control/control.h"
#include "develop/blend.h"
#include "develop/develop.h"
#include "develop/imageop.h"
#include "develop/imageop_math.h"
#include "develop/imageop_gui.h"
#include "develop/pixelpipe_cache.h"
#include "dtgtk/drawingarea.h"
#include "dtgtk/expander.h"
#include "gui/color_picker_proxy.h"
#include "gui/draw.h"
#include "gui/gtk.h"
#include "gui/presets.h"
#include "iop/iop_api.h"
#include "iop/choleski.h"
+ Include dependency graph for toneequal.c:

Data Structures

struct  dt_iop_toneequalizer_params_t
 
struct  dt_iop_toneequalizer_data_t
 
struct  dt_iop_toneequalizer_global_data_t
 
struct  dt_iop_toneequalizer_gui_data_t
 

Macros

#define UI_SAMPLES   256
 
#define CONTRAST_FULCRUM   exp2f(-4.0f)
 
#define MIN_FLOAT   exp2f(-16.0f)
 
#define CHANNELS   9
 
#define PIXEL_CHAN   8
 
#define LUT_RESOLUTION   10000
 
#define DT_TONEEQ_USE_LUT   TRUE
 
#define TEMP_SAMPLES   2 * UI_SAMPLES
 

Typedefs

typedef enum dt_iop_toneequalizer_filter_t dt_iop_toneequalizer_filter_t
 
typedef struct dt_iop_toneequalizer_params_t dt_iop_toneequalizer_params_t
 
typedef struct dt_iop_toneequalizer_data_t dt_iop_toneequalizer_data_t
 
typedef struct dt_iop_toneequalizer_global_data_t dt_iop_toneequalizer_global_data_t
 
typedef struct dt_iop_toneequalizer_gui_data_t dt_iop_toneequalizer_gui_data_t
 

Enumerations

enum  dt_iop_toneequalizer_filter_t {
  DT_TONEEQ_NONE = 0 ,
  DT_TONEEQ_AVG_GUIDED ,
  DT_TONEEQ_GUIDED ,
  DT_TONEEQ_AVG_EIGF ,
  DT_TONEEQ_EIGF
}
 

Functions

const char * name ()
 
const char * aliases ()
 
const char ** description (struct dt_iop_module_t *self)
 
int default_group ()
 
int flags ()
 
int default_colorspace (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece)
 
void input_format (dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece, dt_iop_buffer_dsc_t *dsc)
 
int legacy_params (dt_iop_module_t *self, const void *const old_params, const int old_version, void *new_params, const int new_version)
 
static void compress_shadows_highlight_preset_set_exposure_params (dt_iop_toneequalizer_params_t *p, const float step)
 
static void dilate_shadows_highlight_preset_set_exposure_params (dt_iop_toneequalizer_params_t *p, const float step)
 
void init_presets (dt_iop_module_so_t *self)
 
static gboolean in_mask_editing (dt_iop_module_t *self)
 
static void invalidate_luminance_cache (dt_iop_module_t *const self)
 
static int sanity_check (dt_iop_module_t *self)
 
static float get_luminance_from_buffer (const float *const buffer, const size_t width, const size_t height, const size_t x, const size_t y)
 
static float gaussian_denom (const float sigma)
 
static float gaussian_func (const float radius, const float denominator)
 
static __DT_CLONE_TARGETS__ void apply_toneequalizer (const float *const restrict in, const float *const restrict luminance, float *const restrict out, const dt_iop_roi_t *const roi_in, const dt_iop_roi_t *const roi_out, const size_t ch, const dt_iop_toneequalizer_data_t *const d)
 
static float pixel_correction (const float exposure, const float *const restrict factors, const float sigma)
 
static int compute_luminance_mask (const float *const restrict in, float *const restrict luminance, const size_t width, const size_t height, const size_t ch, const dt_iop_toneequalizer_data_t *const d)
 
static __DT_CLONE_TARGETS__ void display_luminance_mask (const float *const restrict in, const float *const restrict luminance, float *const restrict out, const dt_iop_roi_t *const roi_in, const dt_iop_roi_t *const roi_out, const dt_dev_pixelpipe_t *pipe, const size_t ch)
 
static int toneeq_process (struct dt_iop_module_t *self, const dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece, const void *const restrict ivoid, void *const restrict ovoid, const dt_iop_roi_t *const roi_in, const dt_iop_roi_t *const roi_out)
 
int process (struct dt_iop_module_t *self, const dt_dev_pixelpipe_t *pipe, const dt_dev_pixelpipe_iop_t *piece, const void *const restrict ivoid, void *const restrict ovoid)
 
void modify_roi_in (struct dt_iop_module_t *self, struct dt_dev_pixelpipe_iop_t *piece, const dt_iop_roi_t *roi_out, dt_iop_roi_t *roi_in)
 
static void compute_correction_lut (float *restrict lut, const float sigma, const float *const restrict factors)
 
static void get_channels_gains (float factors[9], const dt_iop_toneequalizer_params_t *p)
 
static void get_channels_factors (float factors[9], const dt_iop_toneequalizer_params_t *p)
 
static int compute_channels_factors (const float factors[8], float out[9], const float sigma)
 
static int compute_channels_gains (const float in[9], float out[9])
 
static int commit_channels_gains (const float factors[9], dt_iop_toneequalizer_params_t *p)
 
static void gui_cache_init (struct dt_iop_module_t *self)
 
static void build_interpolation_matrix (float A[9 *8], const float sigma)
 
static __DT_CLONE_TARGETS__ void compute_log_histogram_and_stats (const float *const restrict luminance, int histogram[256], const size_t num_elem, int *max_histogram, float *first_decile, float *last_decile)
 
static void update_histogram (struct dt_iop_module_t *const self)
 
static __DT_CLONE_TARGETS__ void compute_lut_correction (struct dt_iop_toneequalizer_gui_data_t *g, const float offset, const float scaling)
 
static gboolean update_curve_lut (struct dt_iop_module_t *self)
 
void init_global (dt_iop_module_so_t *module)
 
void cleanup_global (dt_iop_module_so_t *module)
 
void commit_params (struct dt_iop_module_t *self, dt_iop_params_t *p1, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
 
void init_pipe (struct dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
 
void cleanup_pipe (struct dt_iop_module_t *self, dt_dev_pixelpipe_t *pipe, dt_dev_pixelpipe_iop_t *piece)
 
void show_guiding_controls (struct dt_iop_module_t *self)
 
void update_exposure_sliders (dt_iop_toneequalizer_gui_data_t *g, dt_iop_toneequalizer_params_t *p)
 
void gui_update (struct dt_iop_module_t *self)
 Refresh GUI controls from current params and configuration.
 
void gui_changed (dt_iop_module_t *self, GtkWidget *w, void *previous)
 
static void smoothing_callback (GtkWidget *slider, gpointer user_data)
 
static void auto_adjust_exposure_boost (GtkWidget *quad, gpointer user_data)
 
static void auto_adjust_contrast_boost (GtkWidget *quad, gpointer user_data)
 
static void show_luminance_mask_callback (GtkWidget *togglebutton, GdkEventButton *event, dt_iop_module_t *self)
 
static void _switch_cursors (struct dt_iop_module_t *self)
 
int mouse_moved (struct dt_iop_module_t *self, double x, double y, double pressure, int which)
 
int mouse_leave (struct dt_iop_module_t *self)
 
static int set_new_params_interactive (const float control_exposure, const float exposure_offset, const float blending_sigma, dt_iop_toneequalizer_gui_data_t *g, dt_iop_toneequalizer_params_t *p)
 
int scrolled (struct dt_iop_module_t *self, double x, double y, int up, uint32_t state)
 
static gboolean _init_drawing (dt_iop_module_t *const restrict self, GtkWidget *widget, dt_iop_toneequalizer_gui_data_t *const restrict g)
 
void cairo_draw_hatches (cairo_t *cr, double center[2], double span[2], int instances, double line_width, double shade)
 
static void get_shade_from_luminance (cairo_t *cr, const float luminance, const float alpha)
 
static void draw_exposure_cursor (cairo_t *cr, const double pointerx, const double pointery, const double radius, const float luminance, const float zoom_scale, const int instances, const float alpha)
 
static void match_color_to_background (cairo_t *cr, const float exposure, const float alpha)
 
void gui_post_expose (struct dt_iop_module_t *self, cairo_t *cr, int32_t width, int32_t height, int32_t pointerx, int32_t pointery)
 
void gui_focus (struct dt_iop_module_t *self, gboolean in)
 
static void init_nodes_x (dt_iop_toneequalizer_gui_data_t *g)
 
static void init_nodes_y (dt_iop_toneequalizer_gui_data_t *g)
 
static gboolean area_draw (GtkWidget *widget, cairo_t *cr, gpointer user_data)
 
static gboolean area_enter_notify (GtkWidget *widget, GdkEventCrossing *event, gpointer user_data)
 
static gboolean area_leave_notify (GtkWidget *widget, GdkEventCrossing *event, gpointer user_data)
 
static gboolean area_button_press (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 
static gboolean area_motion_notify (GtkWidget *widget, GdkEventMotion *event, gpointer user_data)
 
static gboolean area_button_release (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 
static gboolean notebook_button_press (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 
static void _develop_ui_pipe_started_callback (gpointer instance, gpointer user_data)
 
static void _develop_preview_pipe_finished_callback (gpointer instance, gpointer user_data)
 
static void _develop_ui_pipe_finished_callback (gpointer instance, gpointer user_data)
 
void gui_reset (struct dt_iop_module_t *self)
 
void gui_init (struct dt_iop_module_t *self)
 
void gui_cleanup (struct dt_iop_module_t *self)
 

Variables

static const float centers_ops[8] DT_ALIGNED_ARRAY
 
static const dt_colormatrix_t gauss_kernel
 

Macro Definition Documentation

◆ CHANNELS

#define CHANNELS   9

Build the exposures octaves : band-pass filters with gaussian windows spaced by 1 EV

◆ CONTRAST_FULCRUM

#define CONTRAST_FULCRUM   exp2f(-4.0f)

◆ DT_TONEEQ_USE_LUT

#define DT_TONEEQ_USE_LUT   TRUE

◆ LUT_RESOLUTION

#define LUT_RESOLUTION   10000

◆ MIN_FLOAT

#define MIN_FLOAT   exp2f(-16.0f)

◆ PIXEL_CHAN

#define PIXEL_CHAN   8

◆ TEMP_SAMPLES

#define TEMP_SAMPLES   2 * UI_SAMPLES

◆ UI_SAMPLES

#define UI_SAMPLES   256

Typedef Documentation

◆ dt_iop_toneequalizer_data_t

typedef struct dt_iop_toneequalizer_data_t dt_iop_toneequalizer_data_t

◆ dt_iop_toneequalizer_filter_t

typedef enum dt_iop_toneequalizer_filter_t dt_iop_toneequalizer_filter_t

◆ dt_iop_toneequalizer_global_data_t

typedef struct dt_iop_toneequalizer_global_data_t dt_iop_toneequalizer_global_data_t

◆ dt_iop_toneequalizer_gui_data_t

typedef struct dt_iop_toneequalizer_gui_data_t dt_iop_toneequalizer_gui_data_t

◆ dt_iop_toneequalizer_params_t

typedef struct dt_iop_toneequalizer_params_t dt_iop_toneequalizer_params_t

Enumeration Type Documentation

◆ dt_iop_toneequalizer_filter_t

enum dt_iop_toneequalizer_filter_t
Enumerator
DT_TONEEQ_NONE 
DT_TONEEQ_AVG_GUIDED 
DT_TONEEQ_GUIDED 
DT_TONEEQ_AVG_EIGF 
DT_TONEEQ_EIGF 

Function Documentation

◆ _develop_preview_pipe_finished_callback()

static void _develop_preview_pipe_finished_callback ( gpointer  instance,
gpointer  user_data 
)
static

References _switch_cursors(), g, and dt_iop_module_t::gui_data.

Referenced by gui_cleanup(), and gui_init().

◆ _develop_ui_pipe_finished_callback()

static void _develop_ui_pipe_finished_callback ( gpointer  instance,
gpointer  user_data 
)
static

References _switch_cursors(), g, and dt_iop_module_t::gui_data.

Referenced by gui_cleanup(), and gui_init().

◆ _develop_ui_pipe_started_callback()

static void _develop_ui_pipe_started_callback ( gpointer  instance,
gpointer  user_data 
)
static

Post pipe events

References _switch_cursors(), darktable, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_module_t::enabled, dt_iop_module_t::expanded, g, darktable_t::gui, dt_iop_module_t::gui_data, and dt_gui_gtk_t::reset.

Referenced by gui_cleanup(), and gui_init().

◆ _init_drawing()

static gboolean _init_drawing ( dt_iop_module_t *const restrict  self,
GtkWidget *  widget,
dt_iop_toneequalizer_gui_data_t *const restrict  g 
)
inlinestatic

x axis

y axis

References darktable_t::bauhaus, CHANNELS, darktable, dt_gui_gtk_t::dpi, dt_cairo_image_surface_create(), dt_cairo_perceptual_gradient(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), DT_PIXEL_APPLY_DPI, g, dt_bauhaus_t::graph_border, dt_bauhaus_t::graph_fg, darktable_t::gui, INNER_PADDING, dt_bauhaus_t::pango_font_desc, dt_bauhaus_t::quad_width, set_color(), TRUE, and value.

Referenced by area_draw(), and gui_post_expose().

◆ _switch_cursors()

static void _switch_cursors ( struct dt_iop_module_t *  self)
static

References darktable_t::control, darktable, dt_iop_module_t::dev, dt_control_change_cursor(), dt_control_hinter_message(), dt_control_queue_redraw_center(), dt_control_set_cursor(), dt_iop_color_picker_is_visible(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_ui_main_window(), dt_iop_module_t::expanded, g, darktable_t::gui, dt_develop_t::gui_attached, dt_iop_module_t::gui_data, in_mask_editing(), dt_develop_t::pipe, dt_develop_t::preview_pipe, dt_dev_pixelpipe_t::processing, sanity_check(), and dt_gui_gtk_t::ui.

Referenced by _develop_preview_pipe_finished_callback(), _develop_ui_pipe_finished_callback(), _develop_ui_pipe_started_callback(), gui_focus(), and mouse_moved().

◆ aliases()

const char * aliases ( )

◆ apply_toneequalizer()

static __DT_CLONE_TARGETS__ void apply_toneequalizer ( const float *const restrict  in,
const float *const restrict  luminance,
float *const restrict  out,
const dt_iop_roi_t *const  roi_in,
const dt_iop_roi_t *const  roi_out,
const size_t  ch,
const dt_iop_toneequalizer_data_t *const  d 
)
inlinestatic

References d, dt_load_simd_aligned(), dt_store_simd_aligned(), factors, fast_clamp(), gaussian_denom(), gaussian_func(), dt_iop_roi_t::height, i, out, PIXEL_CHAN, and dt_iop_roi_t::width.

Referenced by toneeq_process().

◆ area_button_press()

static gboolean area_button_press ( GtkWidget *  widget,
GdkEventButton *  event,
gpointer  user_data 
)
static

References d, darktable, dt_iop_module_t::default_params, darktable_t::develop, dt_dev_add_history_item, dt_iop_color_picker_reset(), dt_iop_request_focus(), dt_iop_module_t::enabled, FALSE, g, darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, update_exposure_sliders(), and dt_iop_module_t::widget.

Referenced by gui_init().

◆ area_button_release()

static gboolean area_button_release ( GtkWidget *  widget,
GdkEventButton *  event,
gpointer  user_data 
)
static

References darktable, darktable_t::develop, dt_dev_add_history_item, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_request_focus(), dt_iop_module_t::enabled, FALSE, g, darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and update_exposure_sliders().

Referenced by gui_init().

◆ area_draw()

static gboolean area_draw ( GtkWidget *  widget,
cairo_t *  cr,
gpointer  user_data 
)
static

References _init_drawing(), darktable_t::bauhaus, CHANNELS, dt_bauhaus_t::color_fill, darktable, dt_draw_grid(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), DT_PIXEL_APPLY_DPI, dtgtk_cairo_paint_gamut_check(), dt_iop_module_t::enabled, FALSE, g, dt_bauhaus_t::graph_bg, dt_bauhaus_t::graph_border, dt_bauhaus_t::graph_fg, dt_iop_module_t::gui_data, init_nodes_x(), init_nodes_y(), dt_bauhaus_t::inset_histogram, M_PI, set_color(), TRUE, UI_SAMPLES, update_curve_lut(), and update_histogram().

Referenced by gui_init().

◆ area_enter_notify()

static gboolean area_enter_notify ( GtkWidget *  widget,
GdkEventCrossing *  event,
gpointer  user_data 
)
static

References darktable, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_module_t::enabled, FALSE, g, darktable_t::gui, dt_iop_module_t::gui_data, dt_gui_gtk_t::reset, and TRUE.

Referenced by gui_init().

◆ area_leave_notify()

static gboolean area_leave_notify ( GtkWidget *  widget,
GdkEventCrossing *  event,
gpointer  user_data 
)
static

References darktable, darktable_t::develop, dt_dev_add_history_item, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_module_t::enabled, FALSE, g, darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and update_exposure_sliders().

Referenced by gui_init().

◆ area_motion_notify()

static gboolean area_motion_notify ( GtkWidget *  widget,
GdkEventMotion *  event,
gpointer  user_data 
)
static

References CHANNELS, darktable, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_module_t::enabled, g, darktable_t::gui, dt_iop_module_t::gui_data, i, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, set_new_params_interactive(), and TRUE.

Referenced by gui_init().

◆ auto_adjust_contrast_boost()

static void auto_adjust_contrast_boost ( GtkWidget *  quad,
gpointer  user_data 
)
static

References c, CONTRAST_FULCRUM, darktable, dt_iop_module_t::dev, darktable_t::develop, dt_bauhaus_slider_set(), dt_control_log(), dt_dev_add_history_item, dt_iop_color_picker_reset(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_request_focus(), DT_TONEEQ_EIGF, DT_TONEEQ_GUIDED, dt_iop_module_t::enabled, g, darktable_t::gui, dt_iop_module_t::gui_data, invalidate_luminance_cache(), mix(), p, dt_iop_module_t::params, dt_develop_t::pipe, dt_dev_pixelpipe_t::processing, dt_gui_gtk_t::reset, TRUE, and update_histogram().

Referenced by gui_init().

◆ auto_adjust_exposure_boost()

static void auto_adjust_exposure_boost ( GtkWidget *  quad,
gpointer  user_data 
)
static

References c, CONTRAST_FULCRUM, darktable, dt_iop_module_t::dev, darktable_t::develop, dt_bauhaus_slider_set(), dt_control_log(), dt_dev_add_history_item, dt_iop_color_picker_reset(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_request_focus(), dt_iop_module_t::enabled, g, darktable_t::gui, dt_iop_module_t::gui_data, invalidate_luminance_cache(), mix(), p, dt_iop_module_t::params, dt_develop_t::pipe, dt_dev_pixelpipe_t::processing, dt_gui_gtk_t::reset, TRUE, and update_histogram().

Referenced by gui_init().

◆ build_interpolation_matrix()

static void build_interpolation_matrix ( float  A[9 *8],
const float  sigma 
)
inlinestatic

References A, CHANNELS, gaussian_denom(), gaussian_func(), i, and PIXEL_CHAN.

Referenced by commit_params(), and update_curve_lut().

◆ cairo_draw_hatches()

void cairo_draw_hatches ( cairo_t *  cr,
double  center[2],
double  span[2],
int  instances,
double  line_width,
double  shade 
)

References delta, double(), and i.

Referenced by draw_exposure_cursor().

◆ cleanup_global()

void cleanup_global ( dt_iop_module_so_t *  module)

References dt_iop_module_so_t::data, and dt_free.

◆ cleanup_pipe()

void cleanup_pipe ( struct dt_iop_module_t *  self,
dt_dev_pixelpipe_t *  pipe,
dt_dev_pixelpipe_iop_t *  piece 
)

References dt_dev_pixelpipe_iop_t::data, and dt_free_align.

◆ commit_channels_gains()

static int commit_channels_gains ( const float  factors[9],
dt_iop_toneequalizer_params_t *  p 
)
static

References factors, and p.

Referenced by set_new_params_interactive().

◆ commit_params()

void commit_params ( struct dt_iop_module_t *  self,
dt_iop_params_t *  p1,
dt_dev_pixelpipe_t *  pipe,
dt_dev_pixelpipe_iop_t *  piece 
)

References A, build_interpolation_matrix(), CHANNELS, compute_correction_lut(), d, dt_dev_pixelpipe_iop_t::data, dt_iop_module_t::dev, DT_ALIGNED_ARRAY, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_simd_memcpy(), factors, FALSE, g, get_channels_factors(), dt_develop_t::gui_attached, dt_iop_module_t::gui_data, p, PIXEL_CHAN, pseudo_solve(), and update_curve_lut().

◆ compress_shadows_highlight_preset_set_exposure_params()

static void compress_shadows_highlight_preset_set_exposure_params ( dt_iop_toneequalizer_params_t *  p,
const float  step 
)
static

References p.

Referenced by init_presets().

◆ compute_channels_factors()

static int compute_channels_factors ( const float  factors[8],
float  out[9],
const float  sigma 
)
static

References CHANNELS, factors, i, out, PIXEL_CHAN, and pixel_correction().

Referenced by set_new_params_interactive().

◆ compute_channels_gains()

static int compute_channels_gains ( const float  in[9],
float  out[9] 
)
static

References CHANNELS, i, out, and PIXEL_CHAN.

Referenced by set_new_params_interactive().

◆ compute_correction_lut()

static void compute_correction_lut ( float *restrict  lut,
const float  sigma,
const float *const restrict  factors 
)
static

References factors, fast_clamp(), gaussian_denom(), gaussian_func(), i, lut, LUT_RESOLUTION, and PIXEL_CHAN.

Referenced by commit_params().

◆ compute_log_histogram_and_stats()

static __DT_CLONE_TARGETS__ void compute_log_histogram_and_stats ( const float *const restrict  luminance,
int  histogram[256],
const size_t  num_elem,
int *  max_histogram,
float *  first_decile,
float *  last_decile 
)
inlinestatic

References i, TEMP_SAMPLES, and UI_SAMPLES.

Referenced by update_histogram().

◆ compute_luminance_mask()

static int compute_luminance_mask ( const float *const restrict  in,
float *const restrict  luminance,
const size_t  width,
const size_t  height,
const size_t  ch,
const dt_iop_toneequalizer_data_t *const  d 
)
inlinestatic

References CONTRAST_FULCRUM, d, DT_GF_BLENDING_GEOMEAN, DT_GF_BLENDING_LINEAR, DT_TONEEQ_AVG_EIGF, DT_TONEEQ_AVG_GUIDED, DT_TONEEQ_EIGF, DT_TONEEQ_GUIDED, DT_TONEEQ_NONE, fast_eigf_surface_blur(), fast_surface_blur(), height, luminance_mask(), and width.

Referenced by toneeq_process().

◆ compute_lut_correction()

static __DT_CLONE_TARGETS__ void compute_lut_correction ( struct dt_iop_toneequalizer_gui_data_t *  g,
const float  offset,
const float  scaling 
)
inlinestatic

References factors, g, pixel_correction(), scaling, UI_SAMPLES, and x.

Referenced by update_curve_lut().

◆ default_colorspace()

int default_colorspace ( dt_iop_module_t *  self,
dt_dev_pixelpipe_t *  pipe,
const dt_dev_pixelpipe_iop_t *  piece 
)

References IOP_CS_RGB.

◆ default_group()

int default_group ( )

References IOP_GROUP_TONES.

◆ description()

const char ** description ( struct dt_iop_module_t *  self)

References dt_iop_set_description().

◆ dilate_shadows_highlight_preset_set_exposure_params()

static void dilate_shadows_highlight_preset_set_exposure_params ( dt_iop_toneequalizer_params_t *  p,
const float  step 
)
static

References p.

Referenced by init_presets().

◆ display_luminance_mask()

static __DT_CLONE_TARGETS__ void display_luminance_mask ( const float *const restrict  in,
const float *const restrict  luminance,
float *const restrict  out,
const dt_iop_roi_t *const  roi_in,
const dt_iop_roi_t *const  roi_out,
const dt_dev_pixelpipe_t *  pipe,
const size_t  ch 
)
inlinestatic

References DT_DEV_PIXELPIPE_DISPLAY_MASK, dt_simd_set1(), dt_store_simd_aligned(), dt_iop_roi_t::height, i, dt_dev_pixelpipe_t::mask_display, out, dt_iop_roi_t::width, dt_iop_roi_t::x, and dt_iop_roi_t::y.

Referenced by toneeq_process().

◆ draw_exposure_cursor()

static void draw_exposure_cursor ( cairo_t *  cr,
const double  pointerx,
const double  pointery,
const double  radius,
const float  luminance,
const float  zoom_scale,
const int  instances,
const float  alpha 
)
static

References cairo_draw_hatches(), DT_PIXEL_APPLY_DPI, get_shade_from_luminance(), and M_PI.

Referenced by gui_post_expose().

◆ flags()

int flags ( )

References IOP_FLAGS_INCLUDE_IN_STYLES, and IOP_FLAGS_SUPPORTS_BLENDING.

◆ gaussian_denom()

static float gaussian_denom ( const float  sigma)
static

Referenced by apply_toneequalizer(), build_interpolation_matrix(), compute_correction_lut(), pixel_correction(), and set_new_params_interactive().

◆ gaussian_func()

static float gaussian_func ( const float  radius,
const float  denominator 
)
static

Referenced by apply_toneequalizer(), build_interpolation_matrix(), compute_correction_lut(), pixel_correction(), and set_new_params_interactive().

◆ get_channels_factors()

static void get_channels_factors ( float  factors[9],
const dt_iop_toneequalizer_params_t *  p 
)
static

References c, CHANNELS, factors, get_channels_gains(), and p.

Referenced by commit_params(), set_new_params_interactive(), smoothing_callback(), and update_curve_lut().

◆ get_channels_gains()

static void get_channels_gains ( float  factors[9],
const dt_iop_toneequalizer_params_t *  p 
)
static

References CHANNELS, factors, and p.

Referenced by get_channels_factors().

◆ get_luminance_from_buffer()

static float get_luminance_from_buffer ( const float *const  buffer,
const size_t  width,
const size_t  height,
const size_t  x,
const size_t  y 
)
static

References DT_ALIGNED_PIXEL, for_each_channel, gauss_kernel, height, i, MAX, MIN, width, and x.

Referenced by gui_post_expose(), mouse_moved(), and scrolled().

◆ get_shade_from_luminance()

static void get_shade_from_luminance ( cairo_t *  cr,
const float  luminance,
const float  alpha 
)
static
Todo:
: fetch screen gamma from ICC display profile

Referenced by draw_exposure_cursor(), gui_post_expose(), and match_color_to_background().

◆ gui_cache_init()

static void gui_cache_init ( struct dt_iop_module_t *  self)
static

References dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), DT_PIXELPIPE_CACHE_HASH_INVALID, FALSE, g, dt_iop_module_t::gui_data, and TRUE.

Referenced by gui_init().

◆ gui_changed()

void gui_changed ( dt_iop_module_t *  self,
GtkWidget *  w,
void *  previous 
)

References dt_bauhaus_widget_set_quad_active(), FALSE, g, dt_iop_module_t::gui_data, invalidate_luminance_cache(), and show_guiding_controls().

◆ gui_cleanup()

void gui_cleanup ( struct dt_iop_module_t *  self)

References _develop_preview_pipe_finished_callback(), _develop_ui_pipe_finished_callback(), _develop_ui_pipe_started_callback(), darktable, dt_conf_set_int(), DT_DEBUG_CONTROL_SIGNAL_DISCONNECT, dt_dev_pixelpipe_cache_ref_count_entry(), DT_REQUEST_COLORPICK_OFF, FALSE, g, dt_iop_module_t::gui_data, IOP_GUI_FREE, darktable_t::pixelpipe_cache, dt_iop_module_t::request_color_pick, and darktable_t::signals.

◆ gui_focus()

void gui_focus ( struct dt_iop_module_t *  self,
gboolean  in 
)

References _switch_cursors(), darktable_t::collection, darktable_t::control, darktable, dt_iop_module_t::dev, dt_collection_hint_message(), dt_control_hinter_message(), dt_dev_distort_get_iop_pipe(), dt_dev_pixelpipe_cache_peek(), dt_dev_pixelpipe_cache_ref_count_entry(), dt_dev_pixelpipe_update_history_main, dt_dev_pixelpipe_update_history_preview, dt_hash(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_iop_module_t::enabled, dt_dev_pixelpipe_iop_t::enabled, FALSE, g, dt_dev_pixelpipe_iop_t::global_hash, dt_iop_module_t::gui_data, dt_iop_roi_t::height, darktable_t::pixelpipe_cache, dt_develop_t::preview_pipe, dt_dev_pixelpipe_t::processing, dt_dev_pixelpipe_iop_t::roi_in, TRUE, and dt_iop_roi_t::width.

◆ gui_init()

void gui_init ( struct dt_iop_module_t *  self)

References _develop_preview_pipe_finished_callback(), _develop_ui_pipe_finished_callback(), _develop_ui_pipe_started_callback(), area_button_press(), area_button_release(), area_draw(), area_enter_notify(), area_leave_notify(), area_motion_notify(), auto_adjust_contrast_boost(), auto_adjust_exposure_boost(), darktable_t::bauhaus, darktable, dt_bauhaus_combobox_from_params(), dt_bauhaus_combobox_remove_at(), dt_bauhaus_slider_from_params(), dt_bauhaus_slider_new_with_range(), dt_bauhaus_slider_set_format(), dt_bauhaus_slider_set_soft_max(), dt_bauhaus_slider_set_soft_range(), dt_bauhaus_widget_set_label(), dt_bauhaus_widget_set_quad_paint(), dt_bauhaus_widget_set_quad_toggle(), dt_conf_get_int(), DT_DEBUG_CONTROL_SIGNAL_CONNECT, dt_gui_add_class(), DT_GUI_MODULE, dt_iop_togglebutton_new(), DT_SIGNAL_DEVELOP_HISTORY_CHANGE, DT_SIGNAL_DEVELOP_PREVIEW_PIPE_FINISHED, DT_SIGNAL_DEVELOP_UI_PIPE_FINISHED, DT_TONEEQ_LAST, dt_ui_label_new(), dt_ui_notebook_new(), dt_ui_notebook_page(), dtgtk_cairo_paint_showmask(), dtgtk_cairo_paint_wand(), dtgtk_drawing_area_new_with_aspect_ratio(), DTGTK_TOGGLEBUTTON, dtgtk_togglebutton_set_paint(), FALSE, g, darktable_t::gui, gui_cache_init(), IOP_GUI_ALLOC, notebook_button_press(), dt_gui_gtk_t::scroll_mask, show_luminance_mask_callback(), darktable_t::signals, smoothing_callback(), TRUE, and dt_iop_module_t::widget.

◆ gui_post_expose()

void gui_post_expose ( struct dt_iop_module_t *  self,
cairo_t *  cr,
int32_t  width,
int32_t  height,
int32_t  pointerx,
int32_t  pointery 
)

References _init_drawing(), darktable_t::bauhaus, CHANNELS, darktable, dt_iop_module_t::dev, dt_gui_gtk_t::dpi, draw_exposure_cursor(), DT_ALIGNED_ARRAY, dt_dev_get_overlay_scale(), dt_dev_pixelpipe_cache_rdlock_entry(), dt_dev_pixelpipe_cache_ref_count_entry(), dt_dev_rescale_roi(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), DT_PIXEL_APPLY_DPI, dt_pixel_cache_entry_get_data(), dt_simd_memcpy(), dt_iop_module_t::enabled, factors, FALSE, g, get_luminance_from_buffer(), get_shade_from_luminance(), darktable_t::gui, dt_iop_module_t::gui_data, height, i, in_mask_editing(), M_PI, match_color_to_background(), dt_bauhaus_t::pango_font_desc, dt_develop_t::pipe, PIXEL_CHAN, pixel_correction(), darktable_t::pixelpipe_cache, dt_dev_pixelpipe_t::processing, sanity_check(), TRUE, dt_iop_module_t::widget, and width.

◆ gui_reset()

void gui_reset ( struct dt_iop_module_t *  self)

References darktable, darktable_t::develop, dt_bauhaus_widget_set_quad_active(), dt_dev_add_history_item, dt_iop_request_focus(), FALSE, g, dt_iop_module_t::gui_data, TRUE, and dt_iop_module_t::widget.

◆ gui_update()

void gui_update ( struct dt_iop_module_t *  self)

Refresh GUI controls from current params and configuration.

gui callbacks, these are needed.

Todo:
check why needed
Todo:
by hand

References dt_bauhaus_slider_set(), g, dt_iop_module_t::gui_data, invalidate_luminance_cache(), p, dt_iop_module_t::params, and show_guiding_controls().

◆ in_mask_editing()

static gboolean in_mask_editing ( dt_iop_module_t *  self)
static

Helper functions

References dt_iop_module_t::dev, dt_masks_get_visible_form(), and dt_develop_t::form_gui.

Referenced by _switch_cursors(), and gui_post_expose().

◆ init_global()

void init_global ( dt_iop_module_so_t *  module)

◆ init_nodes_x()

static void init_nodes_x ( dt_iop_toneequalizer_gui_data_t *  g)
inlinestatic

References CHANNELS, g, i, and TRUE.

Referenced by area_draw().

◆ init_nodes_y()

static void init_nodes_y ( dt_iop_toneequalizer_gui_data_t *  g)
inlinestatic

References CHANNELS, g, i, and TRUE.

Referenced by area_draw().

◆ init_pipe()

void init_pipe ( struct dt_iop_module_t *  self,
dt_dev_pixelpipe_t *  pipe,
dt_dev_pixelpipe_iop_t *  piece 
)

References dt_dev_pixelpipe_iop_t::data, dt_dev_pixelpipe_iop_t::data_size, and dt_calloc_align().

◆ init_presets()

void init_presets ( dt_iop_module_so_t *  self)

References compress_shadows_highlight_preset_set_exposure_params(), DEVELOP_BLEND_CS_RGB_SCENE, dilate_shadows_highlight_preset_set_exposure_params(), dt_gui_presets_add_generic(), DT_TONEEQ_EIGF, DT_TONEEQ_GUIDED, DT_TONEEQ_NONE, DT_TONEEQ_NORM_2, DT_TONEEQ_NORM_POWER, dt_iop_module_so_t::op, and p.

◆ input_format()

void input_format ( dt_iop_module_t *  self,
dt_dev_pixelpipe_t *  pipe,
dt_dev_pixelpipe_iop_t *  piece,
dt_iop_buffer_dsc_t *  dsc 
)

References dt_iop_buffer_dsc_t::channels, dt_iop_buffer_dsc_t::datatype, default_input_format(), and TYPE_FLOAT.

◆ invalidate_luminance_cache()

static void invalidate_luminance_cache ( dt_iop_module_t *const  self)
static

References darktable, dt_dev_pixelpipe_cache_ref_count_entry(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), DT_PIXELPIPE_CACHE_HASH_INVALID, FALSE, g, dt_iop_module_t::gui_data, and darktable_t::pixelpipe_cache.

Referenced by auto_adjust_contrast_boost(), auto_adjust_exposure_boost(), gui_changed(), and gui_update().

◆ legacy_params()

int legacy_params ( dt_iop_module_t *  self,
const void *const  old_params,
const int  old_version,
void *  new_params,
const int  new_version 
)

References d, dt_iop_module_t::default_params, and n.

◆ match_color_to_background()

static void match_color_to_background ( cairo_t *  cr,
const float  exposure,
const float  alpha 
)
static
Todo:
: put that as a preference in anselrc

References get_shade_from_luminance().

Referenced by gui_post_expose().

◆ modify_roi_in()

void modify_roi_in ( struct dt_iop_module_t *  self,
struct dt_dev_pixelpipe_iop_t *  piece,
const dt_iop_roi_t *  roi_out,
dt_iop_roi_t *  roi_in 
)

References d, dt_dev_pixelpipe_iop_t::data, dt_dev_pixelpipe_iop_t::iheight, dt_dev_pixelpipe_iop_t::iwidth, max_size, and dt_iop_roi_t::scale.

◆ mouse_leave()

int mouse_leave ( struct dt_iop_module_t *  self)

References darktable, dt_control_queue_redraw_center(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_ui_main_window(), FALSE, g, darktable_t::gui, dt_iop_module_t::gui_data, and dt_gui_gtk_t::ui.

◆ mouse_moved()

int mouse_moved ( struct dt_iop_module_t *  self,
double  x,
double  y,
double  pressure,
int  which 
)

References _switch_cursors(), darktable, dt_iop_module_t::dev, dt_dev_coordinates_image_norm_to_preview_abs(), dt_dev_coordinates_widget_to_image_norm(), dt_dev_pixelpipe_cache_rdlock_entry(), dt_dev_pixelpipe_cache_ref_count_entry(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_pixel_cache_entry_get_data(), FALSE, g, get_luminance_from_buffer(), dt_iop_module_t::gui_data, dt_develop_t::pipe, darktable_t::pixelpipe_cache, dt_develop_t::preview_height, dt_develop_t::preview_width, dt_dev_pixelpipe_t::processing, dt_develop_t::roi, sanity_check(), TRUE, and x.

◆ name()

const char * name ( )

◆ notebook_button_press()

static gboolean notebook_button_press ( GtkWidget *  widget,
GdkEventButton *  event,
gpointer  user_data 
)
static

References darktable, dt_iop_color_picker_reset(), dt_iop_request_focus(), darktable_t::gui, dt_gui_gtk_t::reset, and TRUE.

Referenced by gui_init().

◆ pixel_correction()

static float pixel_correction ( const float  exposure,
const float *const restrict  factors,
const float  sigma 
)
inlinestatic

References factors, fast_clamp(), gaussian_denom(), gaussian_func(), i, and PIXEL_CHAN.

Referenced by compute_channels_factors(), compute_lut_correction(), and gui_post_expose().

◆ process()

int process ( struct dt_iop_module_t *  self,
const dt_dev_pixelpipe_t *  pipe,
const dt_dev_pixelpipe_iop_t *  piece,
const void *const restrict  ivoid,
void *const restrict  ovoid 
)

References dt_dev_pixelpipe_iop_t::roi_in, dt_dev_pixelpipe_iop_t::roi_out, and toneeq_process().

◆ sanity_check()

static int sanity_check ( dt_iop_module_t *  self)
static

References darktable, dt_iop_module_t::dev, darktable_t::develop, dt_control_log(), dt_dev_add_history_item, dt_ioppr_get_iop_order(), dt_iop_module_t::enabled, FALSE, darktable_t::gui, dt_develop_t::gui_attached, dt_iop_module_t::iop_order, dt_develop_t::iop_order_list, dt_iop_module_t::off, dt_gui_gtk_t::reset, and TRUE.

Referenced by _switch_cursors(), gui_post_expose(), mouse_moved(), scrolled(), and toneeq_process().

◆ scrolled()

int scrolled ( struct dt_iop_module_t *  self,
double  x,
double  y,
int  up,
uint32_t  state 
)

References darktable, dt_iop_module_t::dev, darktable_t::develop, dt_dev_add_history_item, dt_dev_pixelpipe_cache_rdlock_entry(), dt_dev_pixelpipe_cache_ref_count_entry(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_modifier_is(), dt_pixel_cache_entry_get_data(), dt_iop_module_t::enabled, FALSE, g, get_luminance_from_buffer(), darktable_t::gui, dt_iop_module_t::gui_data, dt_iop_module_t::off, p, dt_iop_module_t::params, dt_develop_t::pipe, darktable_t::pixelpipe_cache, dt_dev_pixelpipe_t::processing, dt_gui_gtk_t::reset, sanity_check(), set_new_params_interactive(), TRUE, and update_exposure_sliders().

◆ set_new_params_interactive()

static int set_new_params_interactive ( const float  control_exposure,
const float  exposure_offset,
const float  blending_sigma,
dt_iop_toneequalizer_gui_data_t *  g,
dt_iop_toneequalizer_params_t *  p 
)
inlinestatic

References CHANNELS, commit_channels_gains(), compute_channels_factors(), compute_channels_gains(), DT_ALIGNED_ARRAY, dt_control_log(), dt_simd_memcpy(), factors, g, gaussian_denom(), gaussian_func(), get_channels_factors(), i, p, PIXEL_CHAN, and pseudo_solve().

Referenced by area_motion_notify(), and scrolled().

◆ show_guiding_controls()

void show_guiding_controls ( struct dt_iop_module_t *  self)

References DT_TONEEQ_AVG_EIGF, DT_TONEEQ_AVG_GUIDED, DT_TONEEQ_EIGF, DT_TONEEQ_GUIDED, DT_TONEEQ_NONE, FALSE, g, dt_iop_module_t::gui_data, p, and TRUE.

Referenced by gui_changed(), and gui_update().

◆ show_luminance_mask_callback()

static void show_luminance_mask_callback ( GtkWidget *  togglebutton,
GdkEventButton *  event,
dt_iop_module_t *  self 
)
static

References darktable, dt_iop_module_t::dev, DT_DEV_PIXELPIPE_DISPLAY_NONE, DT_DEV_PIXELPIPE_DISPLAY_PASSTHRU, dt_dev_pixelpipe_update_history_main, dt_iop_color_picker_reset(), dt_iop_request_focus(), dt_iop_set_cache_bypass(), g, darktable_t::gui, dt_iop_module_t::gui_data, dt_iop_module_t::off, dt_iop_module_t::request_mask_display, dt_gui_gtk_t::reset, and TRUE.

Referenced by gui_init().

◆ smoothing_callback()

static void smoothing_callback ( GtkWidget *  slider,
gpointer  user_data 
)
static

References CHANNELS, darktable, darktable_t::develop, DT_ALIGNED_ARRAY, dt_bauhaus_slider_get(), dt_control_log(), dt_dev_add_history_item, dt_iop_color_picker_reset(), factors, g, get_channels_factors(), darktable_t::gui, dt_iop_module_t::gui_data, p, dt_iop_module_t::params, dt_gui_gtk_t::reset, TRUE, and update_curve_lut().

Referenced by gui_init().

◆ toneeq_process()

static int toneeq_process ( struct dt_iop_module_t *  self,
const dt_dev_pixelpipe_t *  pipe,
const dt_dev_pixelpipe_iop_t *  piece,
const void *const restrict  ivoid,
void *const restrict  ovoid,
const dt_iop_roi_t *const  roi_in,
const dt_iop_roi_t *const  roi_out 
)
static

References apply_toneequalizer(), compute_luminance_mask(), d, darktable, dt_dev_pixelpipe_iop_t::data, dt_iop_module_t::dev, display_luminance_mask(), dt_check_sse_aligned(), dt_control_log(), dt_dev_pixelpipe_cache_get(), dt_dev_pixelpipe_cache_ref_count_entry(), dt_dev_pixelpipe_cache_remove(), dt_dev_pixelpipe_cache_wrlock_entry(), DT_DEV_PIXELPIPE_DISPLAY_PASSTHRU, DT_DEV_PIXELPIPE_FULL, dt_dev_pixelpipe_has_preview_output(), dt_hash(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_pixelpipe_cache_alloc_align_float, dt_pixelpipe_cache_free_align, DT_PIXELPIPE_CACHE_HASH_INVALID, dt_simd_memcpy(), FALSE, g, dt_dev_pixelpipe_iop_t::global_hash, dt_develop_t::gui_attached, dt_iop_module_t::gui_data, height, dt_iop_roi_t::height, dt_iop_module_t::iop_order, out, darktable_t::pixelpipe_cache, position(), sanity_check(), TRUE, dt_dev_pixelpipe_t::type, width, and dt_iop_roi_t::width.

Referenced by process().

◆ update_curve_lut()

static gboolean update_curve_lut ( struct dt_iop_module_t *  self)
inlinestatic

References build_interpolation_matrix(), CHANNELS, compute_lut_correction(), DT_ALIGNED_ARRAY, dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_simd_memcpy(), factors, FALSE, g, get_channels_factors(), dt_iop_module_t::gui_data, p, dt_iop_module_t::params, PIXEL_CHAN, pseudo_solve(), and TRUE.

Referenced by area_draw(), commit_params(), and smoothing_callback().

◆ update_exposure_sliders()

void update_exposure_sliders ( dt_iop_toneequalizer_gui_data_t *  g,
dt_iop_toneequalizer_params_t *  p 
)

References darktable, dt_bauhaus_slider_set(), g, darktable_t::gui, p, and dt_gui_gtk_t::reset.

Referenced by area_button_press(), area_button_release(), area_leave_notify(), and scrolled().

◆ update_histogram()

static void update_histogram ( struct dt_iop_module_t *const  self)
inlinestatic

References compute_log_histogram_and_stats(), darktable, dt_dev_pixelpipe_cache_rdlock_entry(), dt_dev_pixelpipe_cache_ref_count_entry(), dt_iop_gui_enter_critical_section(), dt_iop_gui_leave_critical_section(), dt_pixel_cache_entry_get_data(), DT_PIXELPIPE_CACHE_HASH_INVALID, FALSE, g, dt_iop_module_t::gui_data, height, darktable_t::pixelpipe_cache, TRUE, UI_SAMPLES, and width.

Referenced by area_draw(), auto_adjust_contrast_boost(), and auto_adjust_exposure_boost().

Variable Documentation

◆ DT_ALIGNED_ARRAY

const float centers_params [ 9 ] DT_ALIGNED_ARRAY
static
Initial value:
= {-56.0f / 7.0f,
-48.0f / 7.0f,
-40.0f / 7.0f,
-32.0f / 7.0f,
-24.0f / 7.0f,
-16.0f / 7.0f,
-8.0f / 7.0f,
0.0f / 7.0f}

Referenced by commit_params(), gui_post_expose(), set_new_params_interactive(), smoothing_callback(), and update_curve_lut().

◆ gauss_kernel

const dt_colormatrix_t gauss_kernel
static
Initial value:
=
{ { 0.076555024f, 0.124401914f, 0.076555024f },
{ 0.124401914f, 0.196172249f, 0.124401914f },
{ 0.076555024f, 0.124401914f, 0.076555024f } }

Referenced by get_luminance_from_buffer().