Here, [Y.sub.dil] and [Y.sub.er] are the dilation and erosion in the
luminance channel Y.
In some cases, the
luminance channel of a color image can make an excellent mask.
In order to model the slow-smoke color,
luminance channel is subtracted from chrominance channel and linear interpolation is performed to fit the range of values to [0,255].
We suggest this is an unintentional error as the opponent color model is usually considered to comprise a
luminance channel and two chromatic channels, brightness having contributions from all three channels.
Gain Channel--serves as the setting of the
luminance channelThe 39 submodels are exploited to detect image splicing in
luminance channel at first.
The method keeps the image chromatic contrast, which could be lost in case of a simple
luminance channel extraction.
Rather, I synthesize a
luminance channel by combining all my other filtered shots into a monochrome result that can be used as a luminance image.
Once I am happy, I then integrate the
Luminance channel with the RGB data using the LRGB Combination tool (Process / Color Spaces / LRGB Combination).
The
luminance channel of HDR image contains information about dynamic range.
Use the H[alpha] image for the
luminance channel, but with its opacity set at less than 50 percent.
If we convert a color exposure to Lab mode and then replace the L channel with a Tech Pan exposure, we should end up with exactly the same color information, but the new, finely detailed
luminance channel will result in a superior image.