TIOTIFFPhotometInterpret

Declaration

type TIOTIFFPhotometInterpret = (ioTIFF_WhiteIsZero, ioTIFF_BlackIsZero, ioTIFF_RGB, ioTIFF_RGBPalette, ioTIFF_TranspMask, ioTIFF_CMYK, ioTIFF_YCbCr, ioTIFF_CIELab);

Description

Value	Description	Supported Pixel Formats
ioTIFF_WhiteIsZero	Grayscale image where 0 represents white and maximum value represents black	ie1g, ie8p, ie8g, ie16g, ie32f
ioTIFF_BlackIsZero	Grayscale image where 0 represents black and maximum value represents white (most common)	ie1g, ie8p, ie8g, ie16g, ie32f
ioTIFF_RGB	RGB full color image with separate red, green and blue samples	ie8p, ie24RGB, ie32RGB, ie48RGB
ioTIFF_RGBPalette	Palette (indexed) color image using a color lookup table (ColorMap)	ie1g, ie8p, ie8g
ioTIFF_TranspMask	Transparency mask where each pixel defines a transparency level	ie1g, ie8p, ie8g, ie16g, ie32f
ioTIFF_CMYK	CMYK color separated image for printing with cyan, magenta, yellow and black channels	ieCMYK
ioTIFF_YCbCr	YCbCr color space image (luminance and chrominance), commonly used with JPEG compression	ie24RGB, ie32RGB, ie48RGB
ioTIFF_CIELab	CIE Lab perceptually uniform color space with lightness and color-opponent dimensions	ieCIELab

Note: To save using the following: ioTIFF_WhiteIsZero, ioTIFF_BlackIsZero, ioTIFF_RGBPalette, ioTIFF_TranspMask, the SamplesPerPixel of the image must be 1, or the PixelFormat one of ie1g, ie8p, ie8g, ie16g, ie32f with AutoSetBitDepth enabled

Example

ImageEnView1.IO.Params.TIFF_Compression := ioTIFF_Uncompressed;
ImageEnView1.IO.Params.BitsPerSample := 1;
ImageEnView1.IO.Params.SamplesPerPixel := 1;
ImageEnView1.IO.Params.TIFF_PhotometInterpret := ioTIFF_BlackIsZero;
ImageEnView1.IO.SaveToFile('D:\output.tif');

// Which is the same as...
IEGlobalSettings().AutoSetBitDepth := True;
ImageEnView1.IEBitmap.PixelFormat := ie1g;
ImageEnView1.IO.Params.TIFF_Compression := ioTIFF_Uncompressed;
ImageEnView1.IO.Params.TIFF_PhotometInterpret := ioTIFF_BlackIsZero;
ImageEnView1.IO.SaveToFile('D:\output.tif');

TIOTIFFPhotometInterpret