#include <jevoisbase/Components/Saliency/env_c_math_ops.h>
#include <jevoisbase/Components/Saliency/env_log.h>
#include <jevoisbase/Components/Saliency/env_types.h>

Include dependency graph for env_c_math_ops.c:

Functions
void	env_c_lowpass_5_x_dec_x_fewbits_optim (const intg32 src, const env_size_t w, const env_size_t h, intg32 dst, const env_size_t w2)

void	env_c_lowpass_5_y_dec_y_fewbits_optim (const intg32 src, const env_size_t w, const env_size_t h, intg32 dst, const env_size_t h2)

void	env_c_lowpass_9_x_fewbits_optim (const intg32 src, const env_size_t w, const env_size_t h, intg32 dst)
	Like env_c_lowpass_9_x_fewbits() but uses optimized filter coefficients.

void	env_c_lowpass_9_y_fewbits_optim (const intg32 src, const env_size_t w, const env_size_t h, intg32 dst)
	Like env_c_lowpass_9_y_fewbits() but uses optimized filter coefficients.

void	env_c_get_min_max (const intg32 src, const env_size_t sz, intg32 xmini, intg32 *xmaxi)
	Get min and max values.

void	env_c_inplace_rectify (intg32 *dst, const env_size_t sz)
	Saturate values < 0.

void	env_c_inplace_normalize (intg32 const dst, const env_size_t sz, const intg32 nmin, const intg32 nmax, intg32 const actualmin_p, intg32 *const actualmax_p, const intg32 rangeThresh)

void	env_c_luminance_from_byte (const struct env_rgb_pixel const src, const env_size_t sz, const env_size_t nbits, intg32 const dst)
	get the luminance with nbits of precision of the input image

void	env_c_image_div_scalar (const intg32 const a, const env_size_t sz, intg32 val, intg32 const dst)
	result = a / val

void	env_c_image_div_scalar_accum (const intg32 const a, const env_size_t sz, intg32 val, intg32 const dst)
	result += a / val

void	env_c_image_minus_image (const intg32 const a, const intg32 const b, const env_size_t sz, intg32 *const dst)
	result = a - b

Detailed Description

Fixed-point integer math versions of some of our floating-point image functions

Definition in file env_c_math_ops.c.

Function Documentation

◆ env_c_get_min_max()

void env_c_get_min_max	(	const intg32 *	src,
		const env_size_t	sz,
		intg32 *	xmini,
		intg32 *	xmaxi
	)

Get min and max values.

Definition at line 277 of file env_c_math_ops.c.

References ENV_ASSERT.

Referenced by env_c_inplace_normalize().

◆ env_c_image_div_scalar()

void env_c_image_div_scalar	(	const intg32 *const	a,
		const env_size_t	sz,
		intg32	val,
		intg32 *const	dst
	)

result = a / val

Definition at line 390 of file env_c_math_ops.c.

Referenced by env_chan_orientation(), and env_motion_channel_input_and_consume_pyr().

◆ env_c_image_div_scalar_accum()

void env_c_image_div_scalar_accum	(	const intg32 *const	a,
		const env_size_t	sz,
		intg32	val,
		intg32 *const	dst
	)

result += a / val

Definition at line 396 of file env_c_math_ops.c.

Referenced by env_chan_orientation(), env_chan_process_pyr(), and env_motion_channel_input_and_consume_pyr().

◆ env_c_image_minus_image()

void env_c_image_minus_image	(	const intg32 *const	a,
		const intg32 *const	b,
		const env_size_t	sz,
		intg32 *const	dst
	)

result = a - b

Definition at line 402 of file env_c_math_ops.c.

Referenced by env_pyr_build_hipass_9().

◆ env_c_inplace_normalize()

void env_c_inplace_normalize	(	intg32 *const	dst,
		const env_size_t	sz,
		const intg32	nmin,
		const intg32	nmax,
		intg32 *const	actualmin_p,
		intg32 *const	actualmax_p,
		const intg32	rangeThresh
	)