FreeImage.IsGreyscaleImage Method

FreeImage.NET

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FreeImage.NET Class Library Reference

FreeImageIsGreyscaleImage Method

Returns whether the image is a greyscale image or not. The function scans all colors in the bitmaps palette for entries where red, green and blue are not all the same (not a grey color). Supports 1-, 4- and 8-bit bitmaps.

Namespace: FreeImageAPI
Assembly: FreeImageNET (in FreeImageNET.dll) Version: 3.17.0.4 (3.17.0)

Syntax

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public static bool IsGreyscaleImage(
	FIBITMAP dib
)

Parameters

dib: Type: FreeImageAPIFIBITMAP
Handle to a FreeImage bitmap.

Return Value

Type: Boolean
True if the image is a greyscale image, else false.

Exceptions

Exception	Condition
ArgumentNullException	dib is null.

Reference

FreeImage Class

FreeImageAPI Namespace

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