Photolisa · Image tools directory
Image Channel and Signature Extraction
Separate a component of an image for another editing or inspection step. Keep track of source color and transparency conventions.
3 catalog entries · 3 destinations
Available tools in this category
Alpha Channel Extractor
Alpha extraction converts an image's transparency channel into a separate grayscale representation.
AvailableExtract Channel
Channel extraction isolates a color or component channel for analysis or editing.
AvailableSignature Extractor
Signature extraction isolates a handwritten mark from a scanned or photographed background.
AvailableTools in this category
Existing tools and tools in development are labeled separately3 tools shown
Alpha Channel Extractor
Alpha extraction converts an image's transparency channel into a separate grayscale representation.
AvailableExtract Channel
Channel extraction isolates a color or component channel for analysis or editing.
AvailableSignature Extractor
Signature extraction isolates a handwritten mark from a scanned or photographed background.
AvailablePlan a image channel and signature extraction workflow
Extraction cannot recover content hidden behind other pixels. Alpha and color channels represent different information. Planned extraction controls are unavailable.
Decisions before you begin
- Source image
- Channel or selected region
- Mask and output format
Prepare the task
- Identify the component to retain and preserve the source image.
- Check selection boundaries or the meaning of channel values.
- Preview the extracted component against its intended destination.