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IM: Raw Data Utilities

From IM - An Imaging Tool

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Raw Data Utilities
[Image Representation]

Detailed Description

See im_util.h


Functions

int imImageDataSize (int width, int height, int color_mode, int data_type)
int imImageLineSize (int width, int color_mode, int data_type)
int imImageLineCount (int width, int color_mode)
int imImageCheckFormat (int color_mode, int data_type)

Function Documentation

int imImageDataSize (  int  width,
int  height,
int  color_mode,
int  data_type
) 
 

Returns the size of the data buffer.

im.ImageDataSize(width: number, height: number, color_mode: number, data_type: number) -> datasize: number [in Lua 5]

int imImageLineSize (  int  width,
int  color_mode,
int  data_type
) 
 

Returns the size of one line of the data buffer.
This depends if the components are packed. If packed includes all components, if not includes only one.

im.ImageLineSize(width: number, color_mode: number, data_type: number) -> linesize: number [in Lua 5]

int imImageLineCount (  int  width,
int  color_mode
) 
 

Returns the number of elements of one line of the data buffer.
This depends if the components are packed. If packed includes all components, if not includes only one.

im.ImageLineCount(width: number, color_mode: number) -> linecount: number [in Lua 5]

int imImageCheckFormat (  int  color_mode,
int  data_type
) 
 

Check if the combination color_mode+data_type is valid.

im.ImageCheckFormat(color_mode: number, data_type: number) -> check: boolean [in Lua 5]


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