This function is used to downshift a chosen range of 8 bits (out of a maximum of 16) to the 256 pixel values that can be shown on an 8-bit display device.
Declaration:
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AT_ERRCOUNT ACCUAPI MED_IP_reduce_depth_with_downshift (
HIGEAR hIGear,
const UINT downshift
);
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Arguments:
| Name | Type | Description |
| hIGear | HIGEAR | HIGEAR handle to the image. |
| downshift | const UINT | A UINT variable specifying the downshift value. |
Return Value:
Returns the number of ImageGear errors that occurred during the function call.
Supported Raster Image Formats:
Grayscale – 9…16 bpp.
Remarks:
This function is used to downshift a chosen range of 8 bits (out of a maximum of 16) to the 256 pixel values that can be shown on an 8-bit display device. For example, if you set downshift to 8, and the image has 16 bpp, bits 8-15 will be downshifted and used alone as the pixel values.
This function will directly alter the pixel data.
See also MED_IP_reduce_depth_with_LUT().