RGBefore raises a few questions due to its outdated technology. We’ll try to answer those questions here.
How can I put my idea into practice?
Are there any other photo-editing programmes that can be used for this?
Yes, you can use GIMP, for example. The following steps will help you achieve the desired result.
- Load the three images for the different colour channels into three separate layers.
- Extract the red, green and blue channels in each respective layer
Colours -> Components -> Extract Component -> [RGB Red, RGB Green, RGB Blue] - Colour each layer red, green and blue
Colours -> Colourise -> [red (255, 0, 0), green (0, 255, 0), blue (0, 0, 255)] - Merge the layers using the ‘Merge Layers’ function (Mode Addition)
Is there a faster way to create a tri-color photograph in Photoshop?
Yes, the method described on the website is quite similar to the analogue approach. However, there is also a quicker way…
- Open the three images individually and create a target image of the same size in RGB format.
- In each image, select a channel (e.g. Red) and copy the image. Paste this copy into the (Red) channel.
- Apply the same procedure to the other images and channels.