This function removes the specified channel from the source image and shifts the remaining channels without transforming pixel data.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_image_channel_remove(
HIGEAR hIGear,
AT_UINT position
);
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Arguments:
| Name | Type | Description |
| hIGear | HIGEAR | HIGEAR handle of image. |
| position | AT_UINT | Index of channel to remove. |
Return Value:
Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.
Supported Raster Image Formats:
All pixel formats supported by ImageGear Professional, except:
- Images with 1 channel.
Sample:
None
Example:
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/* Alter a 24-bit RGB image to use the red channel data for both red and blue channels */ AT_ERRCOUNT nErrcount; /* Number of errors on stack */ HIGEAR hImage; /* Handle of source image */ AT_CHANNEL_REF channel; /* Channel to add */ nErrcount = IG_load_file("test.jpg", &hImage); channel.hImage = hImage; channel.uNumber = 0; nErrcount = IG_image_channel_add(hImage, 3, &channel); nErrcount = IG_image_channel_remove(hImage, 2); nErrcount = IG_save_file(hImage, "test.bmp", IG_SAVE_BMP_UNCOMP); IG_image_delete(hImage); |
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