masks_detail.h File Reference

The detail-mask pixel math: a Scharr-style detail estimate over a raw or scene-referred buffer, and the small blur it is smoothed with. More...

#include <glib.h>
#include "system/simd.h"

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Functions
void	dt_masks_extend_border (float *const mask, const int width, const int height, const int border)
void	dt_masks_blur_9x9_coeff (float *coeffs, const float sigma)
void	dt_masks_blur_9x9 (float *const src, float *const out, const int width, const int height, const float sigma)
void	dt_masks_calc_rawdetail_mask (float *const src, float *const out, float *const tmp, const int width, const int height, const dt_aligned_pixel_t wb)
void	dt_masks_calc_detail_mask (float *const src, float *const out, float *const tmp, const int width, const int height, const float threshold, const gboolean detail)

Detailed Description

The detail-mask pixel math: a Scharr-style detail estimate over a raw or scene-referred buffer, and the small blur it is smoothed with.

These five functions were declared in develop/masks.h, and they have nothing to do with the forms model that header describes. They take float buffers, a width, a height and a threshold; no dt_masks_form_t, no group, no GUI, no pipeline. The only thing they ever shared with drawn masks is the word "mask" and the fact that blending consumes both.

Keeping them there had a cost that is easy to miss: iop/detailmask.c and iop/demosaic.c name NOTHING else from masks.h, yet including it handed each of them develop/develop.h, develop/pixelpipe.h, caches/pixelpipe_cache_alloc.h, common/logging.h, system/atomic.h, system/simd.h and common/times.h – and, being a supply line nobody asked for, made those headers impossible to drop later. Part of the masks enclosure, issue #1299.

Implemented in src/develop/masks/detail.c.

Definition in file masks_detail.h.

Function Documentation

dt_masks_blur_9x9()

void dt_masks_blur_9x9	(	float *const	src,
		float *const	out,
		const int	width,
		const int	height,
		const float	sigma
	)

9x9 Gaussian blur of src into out.

dt_masks_blur_9x9_coeff()

void dt_masks_blur_9x9_coeff	(	float *	coeffs,
		const float	sigma
	)

Fill coeffs with the 9x9 separable Gaussian weights for sigma.

Todo:

: are you for real ? managing arrays with loops and index shift much ?

Definition at line 165 of file detail.c.

References i, k, kernel(), L, and sigma.

Referenced by _refine_with_detail_mask_cl(), dt_masks_blur_9x9(), and dual_demosaic_cl().

dt_masks_calc_detail_mask()

void dt_masks_calc_detail_mask	(	float *const	src,
		float *const	out,
		float *const	tmp,
		const int	width,
		const int	height,
		const float	threshold,
		const gboolean	detail
	)

Turn a detail estimate into a mask: threshold it, and invert when detail is FALSE so the caller gets the flat regions instead.

dt_masks_calc_rawdetail_mask()

void dt_masks_calc_rawdetail_mask	(	float *const	src,
		float *const	out,
		float *const	tmp,
		const int	width,
		const int	height,
		const dt_aligned_pixel_t	wb
	)

Detail estimate over a RAW (CFA) buffer: wb carries the white-balance coefficients the estimate has to divide out before it can compare neighbouring photosites.

dt_masks_extend_border()

void dt_masks_extend_border	(	float *const	mask,
		const int	width,
		const int	height,
		const int	border
	)

Replicate the outermost valid row and column outwards into a border-wide margin, so a subsequent stencil can run without a boundary test. Operates in place on mask.