image.h File Reference

#include "gui/Gimage.h"
#include "gui/Grender.h"
#include "tools/tools.h"

Go to the source code of this file.

Typedefs
typedef void(*	imgLineFunc )(iwImage *img, uchar *y, uchar *u, uchar *v, int cnt, void *data)

Functions
void *	iw_img_get_buffer (int size)
void	iw_img_release_buffer (void)
void	iw_img_col_debug (const char *str, const iwImage *s, int x, int y)
void	iw_img_downsample (const iwImage *source, iwImage *dest, int downw, int downh)
void	iw_img_resize (const iwImage *srcPR, iwImage *destPR, BOOL interpolate)
void	iw_img_resize_raw (const uchar **src, uchar **dst, int src_w, int src_h, int dst_w, int dst_h, int planes, BOOL interpolate)
void	iw_img_border (uchar *src, int width, int height, int border)
void	iw_img_copy_border (const uchar *src, uchar *dest, int width, int height, int border)
void	iw_img_median (const uchar *s, uchar *d, int width, int height, int size)
void	iw_img_medianBW (const uchar *s, uchar *d, int width, int height, int size)
void	iw_img_max (const uchar *s, uchar *d, int width, int height, int size)
void	iw_img_histeq (const uchar *src, uchar *dest, int width, int height)
void	iw_img_cstretch (const uchar *src, uchar *dest, int width, int height, int min_limit, int max_limit)
void	iw_img_sobel (const uchar *src, uchar *dest, int width, int height, int thresh)
void	iw_img_rgbToYuvVis (iwImage *img)
void	iw_img_yuvToRgbVis (iwImage *img)
iwImage *	iw_img_convert_layout (const iwImage *src, iwImage *dst)
BOOL	iw_img_fillPoly (iwImage *img, int count, const prevDataPoint *ptsIn, BOOL invers, imgLineFunc fkt, void *data)
BOOL	iw_img_fillPoly_raw (uchar **s, int width, int height, int planes, const Polygon_t *p, BOOL invers, imgLineFunc fkt, void *data)

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Typedef Documentation

typedef void(* imgLineFunc)(iwImage *img, uchar *y, uchar *u, uchar *v, int cnt, void *data)

---

Function Documentation

void* iw_img_get_buffer

(

int

size

)

  Return a pointer to an internal intermediate buffer. If the buffer
  is smaller than size bytes, the buffer is reallocated.
  Calls to iw_img_get_buffer() can be nested. iw_img_release_buffer()
  must be called if the buffer is not needed any more.

void iw_img_release_buffer

(

void

)

  Release the buffer requested with iw_img_get_buffer().

void iw_img_col_debug	(	const char *	str,
		const iwImage *	s,
		int	x,
		int	y
	)

  Output color of image s at position (x,y) to stderr. If s has 3
  planes result of prev_yuvToRgbVis() is given additionally.

void iw_img_downsample	(	const iwImage *	source,
		iwImage *	dest,
		int	downw,
		int	downh
	)

  Downsample source by factor (downw,downh) and put it to dest.
  dest->data is freed and newly allocated if the size or the type
  of source has changed. Supports IW_8U - IW_DOUBLE.

void iw_img_resize	(	const iwImage *	srcPR,
		iwImage *	destPR,
		BOOL	interpolate
	)

  Resize image srcPR to size of image dstPR and save it in dstPR.
  interpolate==TRUE: Use linear interpolation.

void iw_img_resize_raw	(	const uchar **	src,
		uchar **	dst,
		int	src_w,
		int	src_h,
		int	dst_w,
		int	dst_h,
		int	planes,
		BOOL	interpolate
	)

  Resize image src (size: src_w x src_h with 'planes' planes)
  to size dst_w x dst_h and save it in dst.
  interpolate==TRUE: Use linear interpolation.

void iw_img_border	(	uchar *	src,
		int	width,
		int	height,
		int	border
	)

  Set border of size border in image src to 0.

void iw_img_copy_border	(	const uchar *	src,
		uchar *	dest,
		int	width,
		int	height,
		int	border
	)

  Copy border of width border from src to dest.

void iw_img_median	(	const uchar *	s,
		uchar *	d,
		int	width,
		int	height,
		int	size
	)

  Put median smoothed image (mask size: size*2+1) from s to d.

void iw_img_medianBW	(	const uchar *	s,
		uchar *	d,
		int	width,
		int	height,
		int	size
	)

  Put median smoothed image (mask size: size*2+1) from s to d.
  s is only tested on >0 (-> BLACK/WHITE).

void iw_img_max	(	const uchar *	s,
		uchar *	d,
		int	width,
		int	height,
		int	size
	)

  Put smoothed image (mask size: size*2+1, center of mask gets color
  which occurs most frequently) from s to d.

void iw_img_histeq	(	const uchar *	src,
		uchar *	dest,
		int	width,
		int	height
	)

  Histogram equalize src and put it to dest.

void iw_img_cstretch	(	const uchar *	src,
		uchar *	dest,
		int	width,
		int	height,
		int	min_limit,
		int	max_limit
	)

  Contrast autostretch src and put it to dest.
  Ignore the first min_limit % and the last max_limit % pixels.

void iw_img_sobel	(	const uchar *	src,
		uchar *	dest,
		int	width,
		int	height,
		int	thresh
	)

  Apply a sobel filter in x and y direction to src and save |dx|+|dy|
  to dest. If thresh>0 threshold dest.
  A border of one pixel is copied unchanged.

void iw_img_rgbToYuvVis

(

iwImage *

img

)

  Perform RGB to YUV conversion with intervall reduction.
  Supports IW_8U - IW_DOUBLE.

void iw_img_yuvToRgbVis

(

iwImage *

img

)

  Perform YUV to RGB conversion with intervall expansion.
  Supports IW_8U - IW_DOUBLE.

iwImage* iw_img_convert_layout	(	const iwImage *	src,
		iwImage *	dst
	)

  Convert an interleaved image 'src' to a planed one and vice versa.
  Save the result in the newly allocated image 'dst'. If dst is NULL,
  additionally allocate a new image structure. Returns dst.
  Supports IW_8U - IW_DOUBLE.

BOOL iw_img_fillPoly	(	iwImage *	img,
		int	count,
		const prevDataPoint *	ptsIn,
		BOOL	invers,
		imgLineFunc	fkt,
		void *	data
	)

  count: number of points , ptsIn: the points
  invers==FALSE: Fill the polygon defined by the points ptsIn.
  invers==TRUE: Fill everything except the polygon.
  fkt!=NULL: fkt() is called (instead of changing the image directly.
  fkt==NULL: The polygon (or the inverse) is filled,
                data!=NULL: data defines the color to use.

BOOL iw_img_fillPoly_raw	(	uchar **	s,
		int	width,
		int	height,
		int	planes,
		const Polygon_t *	p,
		BOOL	invers,
		imgLineFunc	fkt,
		void *	data
	)