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Color inpainting Beta


zarathoustra
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Manual Color

You can download Manual color now. (Updated 2010-02-15)

This plugin lets you colorize a selection with the color of your choice.

Quick steps:

1) Open a black and white picture. (Or turn a color picture into black and white)

2) make a selection with the lasso.

3) Apply Color -> Manual color with the color of your choice.

Color Inpainting

You can download Color Inpainting now. (Updated 2010-02-15)

This plugin colors gray areas in a picture where colors are only known in few parts of the picture.

If your picture is already fully colored, applying this filter will NOT change anything.

Quick steps:

1) Open a color picture.

2) Make a rectangle selection in the middle of the picture.

3) Apply Adjustement -> Black and white to the selection

4) Deselect.

5) Apply this filter (Color -> Color inpainting)

It will color the area where you removed it.

The plugin implements "Fast Image and Video Colorization Using Chrominance Blending", Yatziv and Sapiro, 2006.

Using together

These two plugins are ment to be used together in real life scenario.

It attempts to solve the problem of colorizing a completely black and white picture semi-automatically.

Quick steps:

1) Open your black and white picture

2) Apply Adjustement -> Black and white, to make sure it's really black and white.

Info: A black and white looking JPEG picture is not necessarily REALLY black and white. JPEG uses the fact your eyes are not too sensible to colors to seamlessly alter them. Then, a pixel that was a real shade of gray, after being saved in JPEG format, can become something that looks like a shade of gray but isn't. In this case, this plugin will detect such pixels as colored, and will not color them.

3) Using the lasso and the "Manual color" plugin, colorize some parts of the picture.

4) Apply "Color inpainting" to color automatically the rest of the picture.

5) If you are not satisfied with the result, cancel, colorize more parts of the picture, and go to 4).

Known issues

  • Luminosity is not preserved.

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Edited by zarathoustra
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It colors gray pixels in a picture.

If your picture is already fully colored, applying this filter will not change anything.

In order to try out the plugin:

1) Open a color picture.

2) Make a rectangle selection in the middle of the picture.

3) Apply Adjustement -> Black and white to the selection

4) Deselect.

5) Apply this filter (Color -> Color inpainting)

It will color the area where you removed it.

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ADDED: Info: A black and white looking JPEG picture is not necessarily REALLY black and white. JPEG uses the fact your eyes are not too sensible to colors to seamlessly alter them. Then, a pixel that was a real shade of gray, after being saved in JPEG format, can become something that looks like a shade of gray but isn't. In this case, this plugin will detect such pixels as colored, and will not color them.

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