Image Representation

Collaboration diagram for Image Representation:

Modules
	Raw Data Conversion Utilities
	imImage
	Raw Data Utilities
	Color Mode Utilities
Enumerations
enum	imDataType {   IM_BYTE, IM_SHORT, IM_USHORT, IM_INT,   IM_FLOAT, IM_DOUBLE, IM_CFLOAT, IM_CDOUBLE }
enum	imColorSpace {   IM_RGB, IM_MAP, IM_GRAY, IM_BINARY,   IM_CMYK, IM_YCBCR, IM_LAB, IM_LUV,   IM_XYZ }
enum	imColorModeConfig { IM_ALPHA = 0x100, IM_PACKED = 0x200, IM_TOPDOWN = 0x400 }

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Detailed Description

See im.h

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Enumeration Type Documentation

enum imDataType

Image data type descriptors.
See also Data Type Utilities.

Enumerator:

IM_BYTE	"unsigned char". 1 byte from 0 to 255.
IM_SHORT	"short". 2 bytes from -32,768 to 32,767.
IM_USHORT	"unsigned short". 2 bytes from 0 to 65,535.
IM_INT	"int". 4 bytes from -2,147,483,648 to 2,147,483,647.
IM_FLOAT	"float". 4 bytes single precision IEEE floating point.
IM_DOUBLE	"double". 8 bytes double precision IEEE floating point.
IM_CFLOAT	complex "float". 2 float values in sequence, real and imaginary parts.
IM_CDOUBLE	complex "double". 2 double values in sequence, real and imaginary parts.

enum imColorSpace

Image color mode color space descriptors (first byte).
See also Color Mode Utilities.

Enumerator:

IM_RGB	Red, Green and Blue (nonlinear).
IM_MAP	Indexed by RGB color map (data_type=IM_BYTE).
IM_GRAY	Shades of gray, luma (nonlinear Luminance), or an intensity value that is not related to color.
IM_BINARY	Indexed by 2 colors: black (0) and white (1) (data_type=IM_BYTE).
IM_CMYK	Cyan, Magenta, Yellow and Black (nonlinear).
IM_YCBCR	ITU-R 601 Y'CbCr. Y' is luma (nonlinear Luminance).
IM_LAB	CIE L*a*b*. L* is Lightness (nonlinear Luminance, nearly perceptually uniform).
IM_LUV	CIE L*u*v*. L* is Lightness (nonlinear Luminance, nearly perceptually uniform).
IM_XYZ	CIE XYZ. Linear Light Tristimulus, Y is linear Luminance.

enum imColorModeConfig

Image color mode configuration/extra descriptors (1 bit each in the second byte).
See also Color Mode Utilities.

Enumerator:

IM_ALPHA	adds an Alpha channel
IM_PACKED	packed components (rgbrgbrgb...)
IM_TOPDOWN	orientation from top down to bottom