ImgGetRedChannel

Prototype

IntImage:=ImgGetRedChannel(intColorImageHandle)

Description

Produces a grayscale image getting the red channel from a truecolor image.

Parameters

intColorImageHandle: integer value corresponding to the color image handle.

Returned value

IntImage: integer value corresponding to the resulting image handle.

Notes

None.

Example

// Get R, G and B layers from color image

RedLayer:=ImgGetRedChannel(_CurrentImage);

GreenLayer:=ImgGetGreenChannel(_CurrentImage);

BlueLayer:=ImgGetBlueChannel(_CurrentImage);

// Increase contrast just on green layer

ImgAdjustContrast(GreenLayer,30);

// Rebuild color image from layers

NewImage:=ImgMergeRGBChannels(RedLayer,GreenLayer,BlueLayer);

// Delete R, G and B layers from memory

ImgDelete(RedLayer);

ImgDelete(GreenLayer);

ImgDelete(BlueLayer);

// Substute to original image the new processed image

_CurrentImage:=NewImage;