mergeYIQ
|
|
Y, I, Q
|
|
Integers between 0 and 116 specifying the frame numbers of the Luminosity, I-chromaticity and Q-chromaticity component images respectively. A value of 0 represents the DMA memory buffer of the video device. Values in the range of 100-116 correspond to hidden frames.
|
|
Output
|
|
An integer between 1 and 116 specifying the frame number of the output RGB image. Values in the range of 100-116 correspond to hidden frames.
|
|
ERR_OK
|
|
The flag set if successful.
|
|
ERR_FAILED
|
|
The flag set if failed.
|
This set of statements increases the brightness of an RGB image by splitting it into the YIQ components, offsetting all the pixels in the Luminosity component by a value of +64 and then merging the components back into an RGB image.
|
|
Y=101
|
I=102
|
Q=103
|
Off=64
|
setCurDir("samples")
|
loadIm (1,"sample14.iwd")
|
splitYIQ (1, Y, I, Q)
|
offsetIm (Y, Y, Off, M_CLIP)
|
mergeYIQ (Y, I, Q, 2)
|
|
For more information on the YIQ color space see setColorSpace.
|