gd_crop.c File Reference

#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "gd.h"

Go to the source code of this file.

Functions
gdImagePtr	gdImageCrop (gdImagePtr src, const gdRectPtr crop)
gdImagePtr	gdImageCropAuto (gdImagePtr im, const unsigned int mode)
gdImagePtr	gdImageCropThreshold (gdImagePtr im, const unsigned int color, const float threshold)

Function Documentation

gdImageCrop()

gdImagePtr gdImageCrop	(	gdImagePtr	src,
		const gdRectPtr	crop )

Function: gdImageCrop Crops the src image using the area defined by the <crop> rectangle. The result is returned as a new image.

Parameters: src - Source image crop - Rectangular region to crop

Returns: <gdImagePtr> on success or NULL

Definition at line 44 of file gd_crop.c.

gdImageCropAuto()

gdImagePtr gdImageCropAuto	(	gdImagePtr	im,
		const unsigned int	mode )

Function: gdImageAutoCrop Automatic croping of the src image using the given mode (see <gdCropMode>)

Parameters: im - Source image mode - crop mode

Returns: <gdImagePtr> on success or NULL

See also: <gdCropMode>

Definition at line 79 of file gd_crop.c.

gdImageCropThreshold()

gdImagePtr gdImageCropThreshold	(	gdImagePtr	im,
		const unsigned int	color,
		const float	threshold )

Function: gdImageThresholdCrop Crop an image using a given color. The threshold argument defines the tolerance to be used while comparing the image color and the color to crop. The method used to calculate the color difference is based on the color distance in the RGB(a) cube.

Parameters: im - Source image color - color to crop threshold - tolerance (0..100)

Returns: <gdImagePtr> on success or NULL

See also: <gdCropMode>, <gdImageAutoCrop> or <gdImageCrop>

Definition at line 181 of file gd_crop.c.