Gimp - 2.4 Guía Del Usuario
GNU Image Manipulation Program
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Figure 3.29: Add Alpha Channel
Grayscale
- In case you want to convert your brilliant colour image to something that’s black and white (with a lot of shades of
grey), this is one of the easiest ways in which to do it. Some photos do look a lot fancier when displayed in grayscale. Again,
if you’re interested in some detail, this is achieved by taking the RGB values at the pixels in your image, and suitably weighted
averaging them to get an intensity at that point.
if you’re interested in some detail, this is achieved by taking the RGB values at the pixels in your image, and suitably weighted
averaging them to get an intensity at that point.
There is no need to convert an image to a specific mode before saving it in your favourite format, as the GIMP is smart enough
to export.
to export.
3.4.7
Flip An Image
Figure 3.30: Example Image to Flip
(a) Source image
(b) Flipped image