Gimp Lesson 10 | Using Transparency and Alpha Channel
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- Опубліковано 3 лис 2019
- Gimp is an open source, professional photo and image editor similar to Adobe Photoshop. It is 100% free and can be downloaded
www.gimp.org/downloads/
Find more great free software at tjfree.com/
Thank you very much for this insight into alpha channels and transparency. Great information, very clearly described and fantastic, simple description of using the "magic wand" to create transparency. I never knew it could be so simple. The best thoughts are always the simple ones. Thank you again.
I love your tutorials--keep them coming. They are very clear and you are easy to follow. Great job!
Great tutorial - I love the way you explain the why as well as the how. I have seen many tutorials but this is the first one that made me understand why I was doing it.
Thanks again!
Mike
This was THE BEST I´ve seen among the many vids about transparency and the alpha channel. By far the best.
I have watched quite a few of your tutorials on various sorts of free software - Gimp, Krita, Inkscape, etc - and they are always short and to the point. and very useful. So thanks for all the help!!
You're very welcome!
two words. Thank, you. This helped me make thumbnails so much easier I was trying to cut out an area then do the alpha selection and add a border to make it pop and it just erased white so thank you for this awesome tutorial!
Super! Thanks for bringing clarity to using Transparency and the Alpha Channel. Great Tutorial.
You're welcome, thanks for the feedback!
You have an amazing talent for this! Thanks so much for making this so incredibly easy to follow! Liked and subscribed. 🏆
You are a very good teacher. Please keep the vids coming. ( Your are better than a lot of people trying to teach, they are talking to fast and very hard to understand.) When I watch your vids, I comprehend much better. That is always a good thing. THANKS Jimmy A.
Thanks Jimmy! I appreciate your thoughts. Just finished recording the next Gimp video on the Text Tool. I hope to keep a consistent upload schedule.
Thank you so much, the answer was in the first few moments! What a relief!
very good i was not aware that i needed to save a image a png after erasing thank you
Thank you, this was super useful. It actually helped me fix a visual bug in a video game.
Thanks, this was the lecture that I needed to hear. I think I know my way forward now. Excellent tutorial!
Thanks, this is the type content that youtube should be promoting
Thank you. I like your to the point style of instruction.
Very awesome and beginner-friendly tutorial!
Good and very useful tut/demo.
Ideal way of tutoring. Thanks!
ok also i was then messing around with my picture in MS Paint, and went to save it, i was alerted that i would lose all transparency .... ok got it, i was just chopping off extra space on the canvas, im more comfortable doing that in Paint ... ok so now i need to redo the transparency thing, got it! im learning!
i've been tinkering around for a bit ... my challenge was not selecting the whites of eyeballs or teeth, i have a cartoon drawing of Muttley laughing that i am trying to turn into a custom emoji, transparent bkgd .... but i want his white teeth in the picture. i kept trying to deselect the teeth, that didnt work, it kept deselecting everything....
i finally got it to work right, i think i just had the threshold up too high so i turned it down and got a nice marching ants outline
thank you once again, i have seen a few of your videos, i love how fast you go but it is simple and easy to follow
This part is useful for when I find an online image I want to use in a UA-cam thumbnail and need to remove the background.
I am still messing around with the alpha channel, and the fact gimp can make it possible. It will help out with my future videos. A tip you mention will help me. using the eraser i meant.
thanks for explaining so clearly now i understand :)
Thank you SO MUCH for this!!!
Thank you! That was really helpful
great helpful explanation, thanks. btw do you know if we have layer mask option in Darktable?
Thanks! This helped me alot!
thank you your explaination was very helpful.
Hi TJ Free. Do you have a video that shows how I can set up my GIMP interface with the window layout that you have in this video? I don't know what the most efficient tool windows I should have open and how to manipulate their position. I also don't know how to save the layout once I change it. Thanks!
What your desktops environment? I love your colors theme
Yo dude, thanks a ton!
Great videos, really helpful. What's the difference between export and save as?
Good question. Export saves a final image for sharing, uploading, printing, etc... and it can be difficult to make more changes to it in the future. 'Save as' only saves the Gimp project, so you can get into it later and make changes.
@@TJFREE Ah, I see. Thanks for the info.
great tutorial....but when i am using color to alpha ,not only the white part of the image,which i want to transparent, but other half of the image also turned to checked ones which is transparancy.
When i try the colour to alpha it also crop the image to the size of the area changed to alpha (rectangular) once ok'd.
I've checked any settings but don't know why the cropping happens.
Any suggestions?
I understand how it is used (more or less), but as a matter of interest, why is it called an Alpha Channel?
And (if it's not too complicated to explain) how actually does it work? At the moment, I'm using it as a bit of a "black box", without really understanding it, which makes me a bit uneasy.
Many thanks in advance, and thanks for this very helpful video (and your other very helpful videos).
Thank you so much
Google What image viewer are you using to show the difference. In google chrome it is showing the png erased portion as black and jpg it is showing it as white. Kindly specify what exact viewer are you using
i really really need some help!! im making a skin for the game warthunder and you aslo need a second drawing on how the colors of your skin reacts to lighting in the game. (making it gloss or matte in the game) this is selected by the colors of the second drawing.. now on this drawing i see the blocks of the transparency on the drawing with the colors getting thru it but when i change the color the transparency blocks go away and the color just sits on top of it
so the question is how can i use trancparency in the foreground and being abble to stil see the colors
2:13 is what yall are looking for
How do you make part of your image opaque? I have an image with an alpha channel, and I've selected a rectangle in the middle of it, which I want to be fully opaque. How do I do that?
When I work on a TGA file for reskinning purposes, some files in the folder were made on an alpha channel in Photoshop and I can't see some of the images in Gimp for some reason, compared to Photoshop where it was made by the original content creator. Is there a button Gimp for me to see the images in Gimp? Is it possible to troubleshoot this problem?
great job
Nice video
Thank you..so much
Do you have tutoral for people coming over to gimp from Photoshop pro?
What I learned from this video is if you have alpha channel selected, the background will be checkered when deleting part of the image and the file saved as png will be larger by 5 fold. That is all I learned as a beginner. My question now is why do I want the background to be checkered. Why is it so painful to find a single video to show me pics with alpha channel used, for what purpose? Thanks for the effort.
The video explains more than that. Alpha channel is useful for erasing parts of an image and giving it a different shape from a simple square. You can for example create gaphics and icons (like the one shown in this video), portraits without background and much more. Plus, alpha channel lets you can create compositions of images. Don't worry! You'll find its utility as you need it!
Thanks!!!
Thank you
Wow. Thank you so much! Do you know why GIMP does that? It's such a pain in the ass. I'm used to using Photoshop too. But I don't want to pay for it and I don't know any safe sites to torrent from.
Is it possible to somehow to first add an alpha channel, then select for example a face and then automatically erase everything else but the selected area (the face)? It's kinda cumbersome to manually use the eraser every time
No matter what I do I can't get my background to export as transparent. I'm on a mac, in gimp it looks just like you show me, but when i go open the file in Preview, the background is white. I even try to make the background transparent in preview AND still the background is white. I'm really going insane as to why this is happening. Any ideas?
I'm having difficulty with this transparency issue. How to make an image transparent, the whole image, not just one part. I want to superimpose one image on top of another so that both full images appear in the final result. Just as would occur if I placed two film negatives together both would show in the print. But all the videos are about isolating an image section which then overwrites the destination image thus replacing that part of the background image. This is not true transparency but insertion of one image inserted into the other. I know I could print the two photos one on top of the other but the result would need retouching and it's too late then, hence the need to combine the two electronically so they can be retouched and trialled individually prior to being combined.
5:25 note to self
How do I deselect the alpha channel if I want to continue editing the photo? Mine keeps turning black wen I click to remove alpha channel?
ace thanks. winning here.
Hi, I am using this method to create a 4-channel image. 3 channels for rgb solid colors and the 4th channel for mask layer as the alpha channel. what should happen as explained is that I can erase the alpha layer for transparency and not effecting the solid colors behind (red, green and blue channel). However when I export the image as pdf and import it back to check on gimp, the solid colors of the original image behind gets also erased. what might be the problem? thanks in advance!
Is Gimp good for making thumbnails on UA-cam? I'm curious because I'm a UA-camr myself.
Thanks for videos, how to get rid of alpha channel?
does anyone know how to ADD color to a transparent section in a picture. Im trying to add different colors to an image with transparent background.
Thank you. Hare Krishna
What if I wanted to layer an image on another but wanted the background from one to be transparent
Gosh... i miss photoshop
I never get the option "Color to alpha" Even after "Add Alpha Channel" the option stays greyed out.
How do I copy my alpha channel to another channel or grayscale image?
Mine says, "the alpha channel's layer is locked". I am unable to erase anything. Anyone know how to fix this?
I for the life of me can't figure out how to do alpha channel transparency for TGA files. I edit them as PNG's and then convert them back to TGA's and I always end up with a hideous black layer where it should be transparent. It's really annoying and I don't have the money for Photoshop at the moment.
I'm having an odd issue with my layers. I'm creating an image with a transparent background and I've imported layers from other images that also have transparent backgrounds, and I created a new layer so I could so some effects with different blending modes and for some reason I cannot paint or draw on my new empty transparent layer. I have tested with my other layers, I can't draw on them where there's any transparency either. Gimp is acting like I have the Transparency Locked on those layers, but the Transparency isn't locked. How do I resolve this issue? I am painting with Normal paint, and the layer's blend mode is still set to normal as well, I usually keep the layer set to normal until I'm finished paint the area I want the effect on, then I change the blend mode after that.
I have click the Lock Transparency button and it doesn't change anything, Gimp is acting like the transparency of every layer is permanently locked.
I closed that project and started a new project all over again and everything worked just fine, I'm assuming Gimp was glitching out.
I'm trying to copy an alpha channel from one file to another one. How do I do that?
how to paint with a transparent value, can't chose level of transparency for the color pick
Thank you for a great vid that explained transparency use . New to gimp 2.10 so dusting off the cobwebs ..
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Thanks David!
Plz create a video of red eye removal
Das ist ein bisschen interessant. Je mehr ich dir zuhöre, desto mehr glaube ich, dass du Deutscher bist. Ich bin Kanadier, aber wir sind mit Deutsch aufgewachsen (Huber = Hoover) und ich habe den Eindruck, du "denkst" Deutsch. Alles macht einfach Sinn. . . .
Ich habe einige Jahre in Deutschland gelebt und spreche Deutsch. Vielleicht hat es meinen Unterrichtsstil beeinflusst!
I hate the ereaser in Gimp.¡¡¡¡
Hi