Blu-ray titles employ indexed-color images that use palettes with alpha values for menu icons and subtitle data.
Common graphic tools such as Photoshop cannot handle indexed-color images that have palettes with alpha values.
However, creating and editing indexed-color images that use palettes with alpha values is essential in the authoring process for Blu-ray titles.
OPTPiX iMageStudio X-MP not only edits indexed-color images with alpha values easily but can also perform color reduction on full color data with an alpha channel to indexed-color images with alpha values with no loss in image quality.
Major domestic Blu-ray title authoring studios and Hollywood studios use this software and have high praise for it as a necessary tool for creating attractive menus for Blu-ray titles.
OPTPiX iMageStudio X-MP can reduce colors (Alpha Blending Color Reduction) on direct color images with an alpha channel to indexed color images having palettes with alpha values with no loss in image quality.
Furthermore, "Common Palette Color Reduction" can be performed on multiple images by generating indexed color images with a common palette. Of course, Alpha Blending Color Reduction can be executed with Common Palette Color Reduction.
Main icon images and thumbnail chapter images for use with Blu-ray titles can be made more attractive.
 [Thumbnail Image RGB Channel] |
 [Thumbnail Image Alpha Channel] |
 [Thumbnail Image Blended Display Alpha] |
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 [Color Reduction] |
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 [Thumbnail Image Blended Display Alpha (Color reduced to indexed color image)] |
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 [Example of Image Pasted onto Title Screen] (Click on image to display 1920 x 1080 image) |
The OPTPiX iMageStudio series supports the "Common Palette Color Reduction" feature that reduces the color of multiple images to indexed color images that have a common palette. Because a histogram is directly generated from the set of multiple images, an optimal common palette can be created, even if there are thousands of image files in the set.
In addition, OPTPiX iMageStudio X-MP can also perform "Alpha Blending Color Reduction" even with "Common Palette Color Reduction."
 [Multiple Direct Color Images with Alpha Channel] |
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[Common Palette Color Reduction] |
 [Images after Color Reduction] |
Color Reduction with Alpha Channel (Common Palette for All Files)
The OPTPiX iMageStudio series provides a variety of features to edit image colors, such as "Contrast," "Color Density," "Gamma Value," and "Level Correction."
In addition, the macro feature can be used to apply the same correction settings to multiple images in a batch.
Note: OPTPiX iMageStudio X-MP is equipped with the Xbox-dedicated "Xbox Color Equalizer." The "Xbox Color Equalizer" performs "Brightness Control," "Gamma Conversion," and "Saturation Control" as a single operation.
Macros can be used to apply the "Xbox Color Equalizer" when performing color reduction on multiple images.
 [Integrated Image Adjustment Dialog Box] |
The OPTPiX iMageStudio series provides "macro processes" to execute the same process on multiple images in a batch.
Because all of the features mentioned can be specified in a "macro process," operations can be made more efficient.
 [Macro Process Edit Dialog Box] |
 [Executing a Macro Process] |
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