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You could use the ,GIMP,'s select by color tool or the Magic Wand tool. Anyhow you do it, just select all the black pixels. Then, instead of deleting the selected pixels, apply a layer ,mask,: Layer -> ,Mask, -> Add layer ,mask, Select the "Selection" radio button and be sure to select the "Invert ,mask," checkbox. Now, all the black pixels are ,transparent,.
For my posting thumbnails i wanted to use an ,opacity, gradient (my pictures should fade from opaque to ,opacity,). And while i like open source and dont have photoshop at home, i thought, that i could do that with ,gimp,. ,Gimp, offers here with its layer ,masks, a simple and effective way to implement this. This tutorial will show you how to do it.
- again right click on the layer and add an layer ,mask,, filled with white. - take the gradient tool with a gradient from black to white. - apply the gradient to the layer ,mask, (just paint into the image if the frame around the layer ,mask, is white) Start where you want to have 100% ,opacity, and end where you want 0%.
like, selecting by color with maximum threshold and disalowing ,transparency, - (that should give you a selection with the shape of the layers' visible contents). Then, shrinking, inverting and feathering the selection and applying ",gimp, edit cut", or, programatically ",gimp,-edit-fill", with "TRASPARENT_FILL".
This time we're going to make text appear ,transparent,, without the text itself being one of those font's that are ,transparent, (Get my drift) This tut was orig made on ,Gimp, 2.6 (Ignore screen shot of tut :L ) It will work on other versions of ,Gimp, though. It was also made for people who do edits or use "Layers" in …
27/2/2020, · The graphic processing program ,Gimp, has a strange behaviour, that could cause serious privacy issues. If a user ‘cuts out’ an image section, to remove sensitive parts, these pixels are not deleted in the saved graphics file. Instead the pixels are only hidden by a ,transparency mask, in an alpha channel.
13/7/2020, · When you make the image background ,transparent,, you can use the colour according to the background of the new image. If you put a ,transparent, image on top of a blue image, the image will now have a blue background. This is quite handy in graphic designing. You can use ,GIMP, to remove the background from an image.
GIMP, uses layermasks to assign ,transparency, information to layers. Why use layer ,masks,? It saves you the tedious procedure of manually adding an alpha channel to an image with DXTBMP. ,Masks, are added per layer and are automatically combined upon exporting. This means you can decide just how ,transparent, each (layered) element of your texture is.
Example 5. ,GIMP, Layer ,Mask, Background Removal. While Layer ,Masks, aren’t really a ,GIMP, “tool” this technique works well on images with areas that are hard to lasso or outline. The strategy is to use Layer ,Masks, to create a copy of the image in black and white; that copy defines the ,transparent, …
Finally, we apply a layer ,mask, to the this layer which makes parts of the image ,transparent, that we want to show through from below. Step 1¶ Here are the two exposures, loaded into ,GIMP,. I am going to sandwich these on different layers and then combine them with a layer ,mask,. Step 2¶ The first decision is which one goes on top.