DIPlib Documentation - ©1995-2013 Quantitative Imaging Group, Delft University of Technology.

# ImageWriteColour

Write colour image to file (in dipIO)

## SYNOPSIS

dip_Error dipio_ImageWriteColour ( image, filename, photometric, physDims, format, compression )

## FUNCTION

This function writes a colour image to a file, overwriting any other file with the same name. `photometric` must be set to the correct value. Not all file formats support all photometric values, and some don't support colour at all. `physDims` gives physical dimensions of the image, and can be set to 0 for default values. Not all file formats are able to store physical dimensions. Get the format ID through the registry functions. See File formats recognized by dipIO for a list of currently supported formats. If `format` is 0, ICSv2 is used.

## ARGUMENTS

Data type | Name | Description
`dip_Image` | `image` | Output image
`dip_String` | `filename` | File name
`dipio_PhotometricInterpretation` | `photometric` | Photometric interpretation (==colour space)
`dip_PhysicalDimensions` | `physDims` | Physical dimensions structure. See `PhysicalDimensionsNew`
`dip_int` | `format` | ID of file format
`dipio_Compression` | `compression` | Compression method and level. See Compression methods for image files

The enumerator `dipio_PhotometricInterpretation` contains the following constants:

Name | Description
`DIPIO_PHM_GREYVALUE` | No colour information present; it's a grey-value image.
`DIPIO_PHM_RGB` | RGB image (the first three planes are red, green and blue)
`DIPIO_PHM_RGB_NONLINEAR` | Non-linear R'G'B' image (RGB channels to the power of 0.4)
`DIPIO_PHM_CMY` | CMY image (the first three planes are cyan, magenta and yellow)
`DIPIO_PHM_CMYK` | CMYK image (the first four planes are cyan, magenta, yellow and black)
`DIPIO_PHM_CIELUV` | CIE L*u'v' image (the first three planes are luminosity, u* and v*)
`DIPIO_PHM_CIELAB` | CIE L*a*b* image (the first three planes are luminosity, a* and b*)
`DIPIO_PHM_CIEXYZ` | CIE XYZ (the first three planes are X, Y and Z)
`DIPIO_PHM_CIEYXY` | CIE Yxy (the first three planes are Y, x and y)
`DIPIO_PHM_HCV` | HCV image (the first three planes are hue, chroma and value)
`DIPIO_PHM_HSV` | HSV image (the first three planes are hue, saturation and value)
`DIPIO_PHM_DEFAULT` | Same as `DIPIO_PHM_GREYVALUE`
`DIPIO_PHM_GENERIC` | Anything can be coded in the channels; the same as `DIPIO_PHM_CMYK`

Most file formats support only some of these.

## SEE ALSO

`ImageWrite`, `ImageWriteCSV`, `ImageWriteEPS`, `ImageWriteFLD`, `ImageWriteGIF`, `ImageWriteICS`, `ImageWriteJPEG`, `ImageWritePNG`, `ImageWritePS`, `ImageWriteTIFF`, `ImageRead`, `Colour2Gray`