Gimp color to alpha 2019 Jun 7, 2019 · Color to alpha has affected also partially in the middle of the letters. The Color to Alpha command makes transparent all pixels of the active layer that have a selected color. The problem has nothing to do with the alpha-lock. 18, I first have to add an alpha channel before selecting by color; otherwise the background color I want to delete doesn't disappear when I press the delete key. In this tutorial I’ll be demonstrating how to do just that as we use the Color to Alpha feature to make a color transparent in GIMP Please give me explanations with, as much as possible, examples. Thank yo Hi! I'm back at this again, now with Gimp 2. Dec 16, 2019 · Hi I have some issue with editing ONLY alpha channel. I am trying to brush some part of image in alpha channel but when I do it, gimp brushes (or erases I don't know how should I say) the original imag Nov 13, 2019 · Possible solution for Gimp 2. I'm trying to use colour exchange and nothing is happening. - Open an image file. How do I make the background transparent without changing the transparency of the foreground? Dec 5, 2019 · I'm trying to copy paste something but it becomes a faded version for some reason. Apr 18, 2019 · Gimp-Forum. 0. When I now try to follow the instructions, I do: Select none Lock alpha channel. The extra channel tells the computer which areas of the image are transparent (the black pixels in the channel) and opaque (the white pixels in the channel). The Color to Alpha command makes transparent all pixels of the active layer that have a selected color. The blacks stay black, anti-aliased edges blend cleanly, and halftones Just Work™ as you paint in the colors. In particular, in that mode, transparency isn't progressive but binary (fully opaque or fully transparent), and color-to-alpha would not do anything useful. 6 AppImage for ARM64 via BitTorrent Download GIMP 3. One of the ways in which you can edit your photos is by isolating a single color — or a spectrum of similar colors — and deleting it to transparency. 04, GIMP 2. 6. The image has an alpha channel underneath, and I paste to a new layer after I copy it. Thanks a bunch for any hints. Jan 1, 2025 · This lesson has been made using GIMP for Windows but is applicable for mac version of the application as well. Whenever I use color to alpha I end up with the foreground being semi-transparent. 1 Platform: Microsoft Windows Microsoft Windows I mportance: NOR wishlist Target Turn the background of an image to transparent by using the 'Color to Alpha' feature in Gimp. Set the threshold to 1 and select a color on an image and look at the outline of the selection. 6 AppImage for x86_64 directly Show downloads for AArch64 Download GIMP 3. 22 I've successfully saved an alpha channel in a png image that shows the css background color through the image correctly when used as the src in an img tag in an html file. - Click Colors -> Color to Alpha. I don't know a lot about GIMP, but this might be the same issue that @Oxwivi pointed out. May 20, 2019 · For line art, where you want the blacks to stay black, but fill in the white and half-toned regions with good-looking color, the technique I learned involves applying “Color to Alpha” to the source image, then painting under it. So I have selected the area again, I just want to make it totally 100% transparent. You can play with the various options, but I don't think you'll achieve exactly what you Mar 2, 2023 · Adding an alpha channel in GIMP allows you to add transparency to your image. After removing the background you have partially transparent letters like these: How to fix: GIMP has the curves adjustment as well for RGB channels as for Alpha. Wondering how to take the background completely out of the image. My background is white while my foreground is a pale blue and gold. THen, however, the "color to alpha" is greyed out. 10) Paint the layer with the color you want to make transparent Use additional layers for additional colors (you could use several shades of green) You can put a layer outside and below the group to check transparency over a specific background (you don't The Color to Alpha… command makes all pixels with a specified color in the current layer transparent. I guess you have tried to get rid of the remnants of the green color with the treshold sliders in Color to Alpha dialog. May 28, 2019 · 1 How do you remove the background completely using the color to alpha method ? it looks like it detects the edges well and puts the transparency background boxes in the background, but upon further inspection the new image still has a bit of a background color to it. In Colors the option Color to Alpha is not activated. Oct 5, 2025 · GIMP for Unix-like systems Download GIMP 3. Use the Bucket Fill tool with the selected color. Username: Password: Gimp-Forum. 7. Steps to Follow - Start GIMP. 8. 14 arrives with bugfixes and various enhancements. de/gim The right image is decomposed in three color channels (red, green, and blue) and the Alpha channel for transparency. Yet, the "rotate colors" tool enables me to beautifully target the desired range, b Feb 10, 2010 · From gimp 2. - The "Preview" option is used to view the preview of the currently opened image. On the right image the transparency is displayed as a gray checkerboard. 10: Put your image in a group Add a layer above it, set layer mode to Color erase (this mode is new in 2. The attachment is an example of what I'm trying to do. It will attempt to preserve anti-aliasing information by using a partially intelligent routine that replaces weak color information with weak alpha information. 8 I started with a b Oct 31, 2019 · GIMP 2. 57, “Color to Alpha…”. That would not give very good results and would have a jagged outline as pixels will transition in color as they get close to another color. GIMP is 100% free and open source software that runs on Windows, Nov 21, 2019 · Hello I am new to gimp. This is sometimes known as an RGBA image (red, green, blue, alpha). Note The Color to Alpha command makes transparent all pixels of the active layer that have a selected color. 10. I tried the "Color to alpha" option in GIMP, but it's not working. - Then select the image by pressing Ctrl+A or Select -> All. Use one of the selection tools to select an area, then use "color to alpha" on that area. I am trying to make a logo in which I need an alpha background so only my logo shows and nothing else. Use Image>Mode>RGB to go to full-RGB mode, and unlock alpha if still there, and you'll get the Color-to-alpha . Therefore in addition to adding an alpha channel we will also have to convert the background layer color to transparent. I use the colour selector within colour exchange to select 'from' and 'to' colours (as in: https://infofreund. The option "Add Alpha channel" is as well gray (not active). To make the solid background of an image transparent, add an Alpha channel, and use the Magic Wand to select the background. An Alpha channel is created. Instead of storing color information, the alpha channel stores transparency information. - A box displays with a name Color to Alpha. I would greatly appreciate any help you can send my way. Sep 9, 2019 · Colorizing (only) with a Radial Gradient/ Alpha Channel Page 1 of 1 Page 1 of 1 Board index » Gimp Help All times are UTC - 5 hours [ DST ] May 24, 2021 · GIMP’s robust suite of tools and features allow you to manipulate your images in many different ways. It attempts to preserve anti-aliasing information by using a partially intelligent algorithm that replaces weak color information with weak alpha information. May 28, 2019 · Color to Alpha modifies the transparency (and color) of the pixels based on their distance from the selected background color (the "Color" option") -- the closer they are to the background color, the more transparent they become, with the background color becoming fully transparent. In this way, areas that contain an element of the selected color maintain a blended appearance with their surrounding pixels. I select the entire image and choose color to alpha, I select grey as the color Feb 10, 2023 · In order to display a transparent section instead of colored pixels, digital images need an additional type of channel known as an alpha channel. Jan 13, 2015 · by using the keyboard shortcut F. It does a really good job, and I wonder much how exactly Gimp does it in terms of color manipulation, whichever color space the colors might be in. Please give me explanations with, as much as possible, examples. 6 AppImage for x86_64 via BitTorrent Download GIMP 3. Apply Colors > Curves > Alpha and (02-03-2019, 08:06 PM)rich2005 Wrote: [ -> ] There is a color erase but the same problem as before, in an RGB image you can remove elements of the 'erase' color but liable to leave remnants of the rest behind. You can achieve what you are asking by using the fuzzy select tool. I have created an image containing only white text and I want to convert the semi-transparent pixels (the text smoothing) to different values of white (0-254, 0 being black, 255 being white which is the text color) and then export it to a 8-bit raw image data. How do i do Dec 9, 2019 · Hi All, I am trying to remove a background and when I go to colors and try to add color to alpha it is greyed out? How can I fix this. What am I missing? Feb 4, 2019 · (02-03-2019, 08:06 PM)rich2005 Wrote: There is a color erase but the same problem as before, in an RGB image you can remove elements of the 'erase' color but liable to leave remnants of the rest behin May 22, 2016 · Using Gimp's Color Levels to adjust alpha range In Gimp's Adjust Color Levels window, it shows a histogram of the selection's lightness/darkness levels – that is, it shows a distribution of how many pixels in the selection are at each lightness/darkness value. Nov 10, 2019 · Hi, I've read a dozen of forum answers about how to suppress "a color" but I can't find how to change a color range. For more details see Section 8. Jun 29, 2017 · On Ubuntu 20. For those who aren't familiar with the Gimp's "Color to Alpha" feature yet, here is the page on it from the Gimp's documentation: Color to Alpha. I've tried with fuzzy select a Nov 30, 2017 · In case you also want to have the background transparent you will have to tell Gimp which color this is. Oct 20, 2019 · I have an image and I want the background to be converted to transparent pixels. The image is in color-indexed mode, and in that mode many restrictions apply. In this way, areas that contain an element of the selected color will maintain a blended appearance Jan 20, 2025 · I am experiencing an issue trying to add semi transparency to this spectre and full transparency to the grey background. net › GIMP › Extending the GIMP Batch Background Removal Pages (2): 1 2 Next » Thread Rating: 1 2 3 4 5 Feb 10, 2010 · You can edit the color map (Windows>Dockable dialogs>Color map), and in the colormap dialog, you can select a color by number and change it to change the corresponding pixels. Bug 413125 - Color to alpha makes the image lose its original color Summary: Color to alpha makes the image lose its original color Status: REPORTED Alias: None Product: krita Classification: Applications Component: Filters (show other bugs) Version: 4. Here are release highlights: Basic out-of-canvas pixels viewing and editing Optional editing of layers with disabled visibility Foreground Select tool: new Grayscale Preview Mode Newly added Normal Map filter 27 old filters ported to use GEGL buffers HEIF, TIFF, and PDF support improvements Better loading of corrupted XCF files I want the background of my image completely transparent, and the foreground completely opaque. The parts of the image outside of the selected area are not affected. net › GIMP › General questions color to alpha Thread Rating: 0 Vote (s) - 0 Average 1 2 3 4 5 Apr 24, 2020 · I have this image, that I want to make the blue color about 20 % or More transparent, so that you can see thru the color. Color to Alpha modifies the transparency (and color) of the pixels based on their distance from the selected background color (the "Color" option") -- the closer they are to the background color, the more transparent they become, with the background color becoming fully transparent. If no alpha channel was defined choosing Layer > Transparency > Color to Alpha will automatically add an alpha channel with the color chosen to be transparent. Then, use the Color Picker tool to select the background color, which becomes the foreground color in Toolbox. When I made this in 2. 6 AppImage for ARM64 directly Show downloads for x86_64 GIMP for x86_64 or ARM64 on Flathub GIMP for x86_64 or ARM64 on Snap Store Warnings and information (AppImage Oct 17, 2019 · I did "color to alpha" on a selection, but it only made it partially transparent, very annoying. 2. qy cg bzn 7w6kpi rqbp 9oc2ja h74lv 1dmor m4fx py