Color to alpha action

Registered by richb-hanover on 2008-02-18

Automatically make an icon's backgroud transparent

I would like to have the ability to replace the background of an icon with transparency. Typically, an "icon" is an image surrounded by a fixed color. It would be sufficient to use the top-left pixel as a hint of the background color. Then the program could select all of that color surrounding the icon and replace with transparent pixels (or create an alpha mask of the negative shape, or some manipulation like that.) Output file should be a PNG; input could be a PNG, or optionally any ordinary graphic file format. Thanks!

Blueprint information

Status:
Complete
Approver:
Stani
Priority:
Medium
Drafter:
Stani
Direction:
Approved
Assignee:
Nadia Alramli
Definition:
Approved
Series goal:
Accepted for 0.2
Implementation:
Implemented
Milestone target:
milestone icon 0.2.1
Started by
Stani on 2009-05-27
Completed by
Stani on 2009-06-15

Related branches

Sprints

Whiteboard

Nadia implemented this as the Color to Alpha action. It is already included in the bazaar repository.

@Nadia
Please provide a "Select" parameter which has the options:
- By colour (behaviour as it is now)
- Top Left
- Top Right
- Bottom Left
- Bottom Right

This makes the action more flexible for batch processing images with
different colours.

(?)

Work Items

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