image.c File Reference

Include dependency graph for image.c:

Macros
#define	_GNU_SOURCE
#define	_USE_MATH_DEFINES
#define	STB_IMAGE_IMPLEMENTATION
#define	STB_IMAGE_WRITE_IMPLEMENTATION

Functions
float	get_color (int c, int x, int max)
static float	get_pixel (image m, int x, int y, int c)
static float	get_pixel_extend (image m, int x, int y, int c)
static void	set_pixel (image m, int x, int y, int c, float val)
static void	add_pixel (image m, int x, int y, int c, float val)
void	composite_image (image source, image dest, int dx, int dy)
image	border_image (image a, int border)
image	tile_images (image a, image b, int dx)
image	get_label (image **characters, char *string, int size)
image	get_label_v3 (image **characters, char *string, int size)
void	draw_label (image a, int r, int c, image label, const float *rgb)
void	draw_weighted_label (image a, int r, int c, image label, const float *rgb, const float alpha)
void	draw_box_bw (image a, int x1, int y1, int x2, int y2, float brightness)
void	draw_box_width_bw (image a, int x1, int y1, int x2, int y2, int w, float brightness)
void	draw_box (image a, int x1, int y1, int x2, int y2, float r, float g, float b)
void	draw_box_width (image a, int x1, int y1, int x2, int y2, int w, float r, float g, float b)
void	draw_bbox (image a, box bbox, int w, float r, float g, float b)
image **	load_alphabet ()
	To create the labels shown on the images, Darknet has tiny images of each character in the ASCII table. More...
detection_with_class *	get_actual_detections (detection *dets, int dets_num, float thresh, int *selected_detections_num, char **names)
int	compare_by_lefts (const void *a_ptr, const void *b_ptr)
int	compare_by_probs (const void *a_ptr, const void *b_ptr)
void	draw_detections_v3 (image im, detection *dets, int num, float thresh, char **names, image **alphabet, int classes, int ext_output)
void	draw_detections (image im, int num, float thresh, box *boxes, float **probs, char **names, image **alphabet, int classes)
void	transpose_image (image im)
void	rotate_image_cw (image im, int times)
void	flip_image (image a)
image	image_distance (image a, image b)
void	embed_image (image source, image dest, int dx, int dy)
image	collapse_image_layers (image source, int border)
void	constrain_image (image im)
void	normalize_image (image p)
void	normalize_image2 (image p)
void	copy_image_inplace (image src, image dst)
image	copy_image (image p)
void	rgbgr_image (image im)
void	show_image (image p, const char *name)
void	save_image_png (image im, const char *name)
void	save_image_options (image im, const char *name, IMTYPE f, int quality)
void	save_image (image im, const char *name)
void	save_image_jpg (image p, const char *name)
void	show_image_layers (image p, char *name)
void	show_image_collapsed (image p, char *name)
image	make_empty_image (int w, int h, int c)
image	make_image (int w, int h, int c)
image	make_random_image (int w, int h, int c)
image	float_to_image_scaled (int w, int h, int c, float *data)
image	float_to_image (int w, int h, int c, float *data)
image	rotate_crop_image (image im, float rad, float s, int w, int h, float dx, float dy, float aspect)
image	rotate_image (image im, float rad)
void	translate_image (image m, float s)
void	scale_image (image m, float s)
image	crop_image (image im, int dx, int dy, int w, int h)
int	best_3d_shift_r (image a, image b, int min, int max)
int	best_3d_shift (image a, image b, int min, int max)
void	composite_3d (char *f1, char *f2, char *out, int delta)
void	fill_image (image m, float s)
void	letterbox_image_into (image im, int w, int h, image boxed)
image	letterbox_image (image im, int w, int h)
image	resize_max (image im, int max)
image	resize_min (image im, int min)
image	random_crop_image (image im, int w, int h)
image	random_augment_image (image im, float angle, float aspect, int low, int high, int size)
float	three_way_max (float a, float b, float c)
float	three_way_min (float a, float b, float c)
void	rgb_to_hsv (image im)
void	hsv_to_rgb (image im)
image	grayscale_image (image im)
image	threshold_image (image im, float thresh)
image	blend_image (image fore, image back, float alpha)
void	scale_image_channel (image im, int c, float v)
void	translate_image_channel (image im, int c, float v)
image	binarize_image (image im)
void	saturate_image (image im, float sat)
void	hue_image (image im, float hue)
void	exposure_image (image im, float sat)
void	distort_image (image im, float hue, float sat, float val)
void	random_distort_image (image im, float hue, float saturation, float exposure)
void	saturate_exposure_image (image im, float sat, float exposure)
float	bilinear_interpolate (image im, float x, float y, int c)
void	quantize_image (image im)
void	make_image_red (image im)
image	make_attention_image (int img_size, float *original_delta_cpu, float *original_input_cpu, int w, int h, int c, float alpha)
image	resize_image (image im, int w, int h)
void	test_resize (char *filename)
image	load_image_stb (char *filename, int channels)
image	load_image_stb_resize (char *filename, int w, int h, int c)
image	load_image (char *filename, int desired_width, int desired_height, int channels)
	Load the given image. More...
image	load_image_color (char *filename, int w, int h)
image	get_image_layer (image m, int l)
void	print_image (image m)
image	collapse_images_vert (image *ims, int n)
image	collapse_images_horz (image *ims, int n)
void	show_image_normalized (image im, const char *name)
void	show_images (image *ims, int n, char *window)
void	free_image (image m)
LIB_API void	copy_image_from_bytes (image im, char *pdata)

Variables
int	check_mistakes
float	colors [6][3] = { {1,0,1}, {0,0,1},{0,1,1},{0,1,0},{1,1,0},{1,0,0} }

Macro Definition Documentation

_GNU_SOURCE

#define _GNU_SOURCE

_USE_MATH_DEFINES

#define _USE_MATH_DEFINES

STB_IMAGE_IMPLEMENTATION

#define STB_IMAGE_IMPLEMENTATION

STB_IMAGE_WRITE_IMPLEMENTATION

#define STB_IMAGE_WRITE_IMPLEMENTATION

Function Documentation

get_color()

float get_color	(	int	c,
		int	x,
		int	max
	)

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get_pixel()

static float get_pixel ( image  m, int  x, int  y, int  c  )

static

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get_pixel_extend()

static float get_pixel_extend ( image  m, int  x, int  y, int  c  )

static

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set_pixel()

static void set_pixel ( image  m, int  x, int  y, int  c, float  val  )

static

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add_pixel()

static void add_pixel ( image  m, int  x, int  y, int  c, float  val  )

static

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composite_image()

void composite_image	(	image	source,
		image	dest,
		int	dx,
		int	dy
	)

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border_image()

image border_image	(	image	a,
		int	border
	)

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tile_images()

image tile_images	(	image	a,
		image	b,
		int	dx
	)

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get_label()

image get_label	(	image **	characters,
		char *	string,
		int	size
	)

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get_label_v3()

image get_label_v3	(	image **	characters,
		char *	string,
		int	size
	)

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draw_label()

void draw_label	(	image	a,
		int	r,
		int	c,
		image	label,
		const float *	rgb
	)

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draw_weighted_label()

void draw_weighted_label	(	image	a,
		int	r,
		int	c,
		image	label,
		const float *	rgb,
		const float	alpha
	)

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draw_box_bw()

void draw_box_bw	(	image	a,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		float	brightness
	)

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draw_box_width_bw()

void draw_box_width_bw	(	image	a,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		int	w,
		float	brightness
	)

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draw_box()

void draw_box	(	image	a,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		float	r,
		float	g,
		float	b
	)

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draw_box_width()

void draw_box_width	(	image	a,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		int	w,
		float	r,
		float	g,
		float	b
	)

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draw_bbox()

void draw_bbox	(	image	a,
		box	bbox,
		int	w,
		float	r,
		float	g,
		float	b
	)

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load_alphabet()

image** load_alphabet

(

)

To create the labels shown on the images, Darknet has tiny images of each character in the ASCII table.

And multiple sizes of each one. This is the function that loads all of these into memory. See the images in the data/labels/ directory.

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get_actual_detections()

detection_with_class* get_actual_detections	(	detection *	dets,
		int	dets_num,
		float	thresh,
		int *	selected_detections_num,
		char **	names
	)

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compare_by_lefts()

int compare_by_lefts	(	const void *	a_ptr,
		const void *	b_ptr
	)

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compare_by_probs()

int compare_by_probs	(	const void *	a_ptr,
		const void *	b_ptr
	)

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draw_detections_v3()

void draw_detections_v3	(	image	im,
		detection *	dets,
		int	num,
		float	thresh,
		char **	names,
		image **	alphabet,
		int	classes,
		int	ext_output
	)

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draw_detections()

void draw_detections	(	image	im,
		int	num,
		float	thresh,
		box *	boxes,
		float **	probs,
		char **	names,
		image **	alphabet,
		int	classes
	)

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transpose_image()

void transpose_image

(

image

im

)

rotate_image_cw()

void rotate_image_cw	(	image	im,
		int	times
	)

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flip_image()

void flip_image

(

image

a

)

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image_distance()

image image_distance	(	image	a,
		image	b
	)

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embed_image()

void embed_image	(	image	source,
		image	dest,
		int	dx,
		int	dy
	)

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collapse_image_layers()

image collapse_image_layers	(	image	source,
		int	border
	)

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constrain_image()

void constrain_image

(

image

im

)

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normalize_image()

void normalize_image

(

image

p

)

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normalize_image2()

void normalize_image2

(

image

p

)

copy_image_inplace()

void copy_image_inplace	(	image	src,
		image	dst
	)

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copy_image()

image copy_image

(

image

p

)

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rgbgr_image()

void rgbgr_image

(

image

im

)

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show_image()

void show_image	(	image	p,
		const char *	name
	)

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save_image_png()

void save_image_png	(	image	im,
		const char *	name
	)

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save_image_options()

void save_image_options	(	image	im,
		const char *	name,
		IMTYPE	f,
		int	quality
	)

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save_image()

void save_image	(	image	im,
		const char *	name
	)

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save_image_jpg()

void save_image_jpg	(	image	p,
		const char *	name
	)

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show_image_layers()

void show_image_layers	(	image	p,
		char *	name
	)

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show_image_collapsed()

void show_image_collapsed	(	image	p,
		char *	name
	)

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make_empty_image()

image make_empty_image	(	int	w,
		int	h,
		int	c
	)

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make_image()

image make_image	(	int	w,
		int	h,
		int	c
	)

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make_random_image()

image make_random_image	(	int	w,
		int	h,
		int	c
	)

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float_to_image_scaled()

image float_to_image_scaled	(	int	w,
		int	h,
		int	c,
		float *	data
	)

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float_to_image()

image float_to_image	(	int	w,
		int	h,
		int	c,
		float *	data
	)

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rotate_crop_image()

image rotate_crop_image	(	image	im,
		float	rad,
		float	s,
		int	w,
		int	h,
		float	dx,
		float	dy,
		float	aspect
	)

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rotate_image()

image rotate_image	(	image	im,
		float	rad
	)

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translate_image()

void translate_image	(	image	m,
		float	s
	)

scale_image()

void scale_image	(	image	m,
		float	s
	)

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crop_image()

image crop_image	(	image	im,
		int	dx,
		int	dy,
		int	w,
		int	h
	)

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best_3d_shift_r()

int best_3d_shift_r	(	image	a,
		image	b,
		int	min,
		int	max
	)

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best_3d_shift()

int best_3d_shift	(	image	a,
		image	b,
		int	min,
		int	max
	)

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composite_3d()

void composite_3d	(	char *	f1,
		char *	f2,
		char *	out,
		int	delta
	)

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fill_image()

void fill_image	(	image	m,
		float	s
	)

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letterbox_image_into()

void letterbox_image_into	(	image	im,
		int	w,
		int	h,
		image	boxed
	)

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letterbox_image()

image letterbox_image	(	image	im,
		int	w,
		int	h
	)

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resize_max()

image resize_max	(	image	im,
		int	max
	)

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resize_min()

image resize_min	(	image	im,
		int	min
	)

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random_crop_image()

image random_crop_image	(	image	im,
		int	w,
		int	h
	)

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random_augment_image()

image random_augment_image	(	image	im,
		float	angle,
		float	aspect,
		int	low,
		int	high,
		int	size
	)

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three_way_max()

float three_way_max	(	float	a,
		float	b,
		float	c
	)

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three_way_min()

float three_way_min	(	float	a,
		float	b,
		float	c
	)

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rgb_to_hsv()

void rgb_to_hsv

(

image

im

)

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hsv_to_rgb()

void hsv_to_rgb

(

image

im

)

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grayscale_image()

image grayscale_image

(

image

im

)

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threshold_image()

image threshold_image	(	image	im,
		float	thresh
	)

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blend_image()

image blend_image	(	image	fore,
		image	back,
		float	alpha
	)

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scale_image_channel()

void scale_image_channel	(	image	im,
		int	c,
		float	v
	)

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translate_image_channel()

void translate_image_channel	(	image	im,
		int	c,
		float	v
	)

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binarize_image()

image binarize_image

(

image

im

)

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saturate_image()

void saturate_image	(	image	im,
		float	sat
	)

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hue_image()

void hue_image	(	image	im,
		float	hue
	)

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exposure_image()

void exposure_image	(	image	im,
		float	sat
	)

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distort_image()

void distort_image	(	image	im,
		float	hue,
		float	sat,
		float	val
	)

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random_distort_image()

void random_distort_image	(	image	im,
		float	hue,
		float	saturation,
		float	exposure
	)

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saturate_exposure_image()

void saturate_exposure_image	(	image	im,
		float	sat,
		float	exposure
	)

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bilinear_interpolate()

float bilinear_interpolate	(	image	im,
		float	x,
		float	y,
		int	c
	)

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quantize_image()

void quantize_image

(

image

im

)

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make_image_red()

void make_image_red

(

image

im

)

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make_attention_image()

image make_attention_image	(	int	img_size,
		float *	original_delta_cpu,
		float *	original_input_cpu,
		int	w,
		int	h,
		int	c,
		float	alpha
	)

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resize_image()

image resize_image	(	image	im,
		int	w,
		int	h
	)

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test_resize()

void test_resize

(

char *

filename

)

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load_image_stb()

image load_image_stb	(	char *	filename,
		int	channels
	)

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load_image_stb_resize()

image load_image_stb_resize	(	char *	filename,
		int	w,
		int	h,
		int	c
	)

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load_image()

image load_image	(	char *	filename,
		int	desired_width,
		int	desired_height,
		int	channels
	)

Load the given image.

If both desired_width and desired_height have been set, then the image will be resized to match those dimensions. Otherwise, specify 0 (zero) to leave the image dimensions unchanged.

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load_image_color()

image load_image_color	(	char *	filename,
		int	w,
		int	h
	)

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get_image_layer()

image get_image_layer	(	image	m,
		int	l
	)

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print_image()

void print_image

(

image

m

)

collapse_images_vert()

image collapse_images_vert	(	image *	ims,
		int	n
	)

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collapse_images_horz()

image collapse_images_horz	(	image *	ims,
		int	n
	)

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show_image_normalized()

void show_image_normalized	(	image	im,
		const char *	name
	)

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show_images()

void show_images	(	image *	ims,
		int	n,
		char *	window
	)

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free_image()

void free_image

(

image

m

)

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copy_image_from_bytes()

LIB_API void copy_image_from_bytes	(	image	im,
		char *	pdata
	)

Variable Documentation

check_mistakes

int check_mistakes

colors

float colors[6][3] = { {1,0,1}, {0,0,1},{0,1,1},{0,1,0},{1,1,0},{1,0,0} }