Crop an image
Synopsis:
#include <img/img.h>
int img_crop( const img_t *src,
img_t *dst,
const unsigned x,
const unsigned y );
Arguments:
-
src
- The address of the source img_t structure to crop.
-
dst
- The address of the destination img_t structure, which requires the
width (IMG_W) and height (IMG_H) to be specified at a minimum.
-
x
- The horizontal coordinate in the source image to begin the crop operation.
-
y
- The vertical coordinate in the source image to begin the crop operation.
Library:
libimg
Use the -l img option to
qcc
to link against this library.
Description:
This function crops a source image at a given set of source coordinates
x, y to the
dimensions specified by the destination image.
Returns:
-
IMG_ERR_OK
- Success
-
IMG_ERR_PARM
-
- source image width, height, and/or format not set.
- destination image width, and/or height not set.
- destination image larger than source image.
- crop co-ordinates plus size of destination image exceed source image bounds.
-
IMG_ERR_NOSUPPORT
- Destination image format not supported
-
IMG_ERR_MEM
- Memory allocation failure
Classification:
Image library
| Safety: |
|
| Interrupt handler |
No |
| Signal handler |
No |
| Thread |
No |