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| Commands Used with the IMGCTRL, IMGOP and PICFILL Functions |
GET_PIXEL
Returns the pixel value of a specified position in the selected image
| Syntax | |
| Details | |
| Example |
Syntax |
| rc=IMGOP(task-id, 'GET_PIXEL', x, y, red<, green, blue>); |
- x
- y
- red
-
is either the red value of an RGB image or the pixel value for a CMAP or GRAY image.
- green
-
is the green value for an RGB image and is ignored for all others.
- blue
-
is the blue value for an RGB image and is ignored for all others.
| Details |
The color values for a CMAP image or an RGB image must be between 0 and 255. If any value is out of range, an error is returned. For a GRAY image, GET_PIXEL returns a red value of either 0 or 1.
| Example |
See the example for CREATE_IMAGE.
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