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GIMP's Color to Alpha tool is very handy if you know how to use it, and this task seems particularly well suited for it:
Open the image in GIMP, and change it to RGB color mode if necessary.
Select Layer → Transparency → Color to Alpha...
Select black (#000000) as the color to make transparent.
Click "OK".
Save the resulting image in PNG format:
43
JPG does not allow transparent backgrounds, the only thing you can do is have a flat color background that would blend into your website: eg. if your website background is white, then have JPGs created with a white background.
Otherwise you need to consider saving as PNG, which does allow true transparency.
31
You turned on the "Transparent Grid". You can go to View → Hide Transparency Grid or hit Command/Ctrl+Shift+D.
30
Do you really need to follow the trend?
Don't ever do something because it's a trend. Do things because they're good for the user's experience because that is what's best for your company and your design. Think really hard about the implications that adding a large image to your site will have and weigh the other options you have. You don't have to use this ...
27
You are correct--that "checked background" is how many programs indicate transparent areas. SVG files have a transparent background. Changing the background color is not part of the SVG standard, so changing the background color in Inkscape won't carry over to the SVG file when its viewed in a browser.
There are a few ways to get a solid background color:
...
23
You could probably try to "trace bitmap", using the "Multiple scans" with "Colors", with the "remove background" option, and choosing "2" scans.
Then, click "Ok", select both the bitmap and the vector result :
Then rightclick, and select "Set Clip" :
Far from perfect, but it's a good start.
22
As of Photoshop CC 2015.5 you can now have artboards with transparent backgrounds.
Either create a new Artboard and select Transparent under the Background Contents menu or, if you have an existing artboard, simply select it in the layers panel, open up the properties windows and change the background with the Artboard background color dropdown. (Note that ...
20
I created a similar effect with the Gaussian Blur tool in Photoshop set to a 60 px radius.
Of course, you can do this with any photo where you like the color shifts, your sample reminded me of a beach, so I found a beach photo on Wikimedia.
Another way you can do it is by creating the shapes you want and then applying a Gaussian blur to them:
20
Got 2 answers for you...
Select Rectangle 6 and click on make exportable, now click Create Separate Slice Layer (the little knife) and simply drag the shown image to your desktop to export it.
(The better answer) Instead of using a transparent rectangle, create an Artboard. Hit A and drag a 50x50 box. Add your star, select the Artboard and click Make ...
19
The way transparency works with 8-bit gifs/pngs is that a pixel is either fully transparent or fully opaque.
On the corners of a circle where the circle blends transparently to the background, there are usually pixels that are semi-transparent to smoothen the transition. This smooth transition can not fully be reproduced with 8-bit gifs/pngs.
One way of ...
18
In short, it's easy on the eyes;
'Simply put, contrast is the difference between two colors. On a web page, the amount of contrast required varies with different parts of the page. You usually want a high contrast between text and its background color. But too high contrast between design elements might give an unsettled and messy impression. Black and ...
17
create your image. For example, let's say it's 200px square
go to FILTERS > OTHER > OFFSET and type in x and y numbers that are half your image size (in this case 100px)
this will shift your image over that many pixels and put the pixels that were moved off the canvas on to the other side. You now will see a seam running down the middle of your image where ...
17
To make the text box a different color, select a corner of the text box with the Direct Selection tool (the white arrow). Adjust the color/stroke normally.
To create a margin between the box edge and the text itself, select the box with the regular Selection tool (black arrow), then go to Type > Area Type Options, and adjust the Inset Spacing under the ...
17
There is this useful site....
http://www.online-image-editor.com/
Click on the tab Advanced
Transparency
Click on gif image, on the background you want to remove
17
It's not distracting
Personally I don't think it is distracting. And white background profile pictures are ubiquitous. Especially since companies want to keep visual similarity between their team, and many staff members won't be wearing white.
Use the corporate colour scheme
The only other approach I have used quite frequently is to use a background ...
15
How do I convert a .png blurred background into a compressed .jpg one without introducing artefacts?
This probably doesn't answer your question. Some possible alternatives...
Have you considered CSS instead:
background: linear-gradient(45deg, #3d667c, #1d283e);
Or perhaps you could use the SVG base64 technique (generator tool here):
<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 1 1" preserveAspectRatio="none"><...
14
JPEG doesn't support transparency at all.
Most compatible option is to use PNG, but results in large files for photographs because it is lossless compression.
Another option is to use the new WebP file format which supports both lossless (like PNG) and lossy compression (like JPEG), and allows transparency with both. Support for WebP is relatively good ...
14
It is entirely possible to have transparency with JPEGs with modern browsers. It is, however, complicated. It involves using SVG to create a clipping mask that handles the transparency. With Photoshop, you can do this with the pen tool, and then export to Illustrator, where you can convert the pen tool path into an SVG.
Here is a more detailed guide for ...
13
How do I convert a .png blurred background into a compressed .jpg one without introducing artefacts?
JPEG is not a lossless compression
JPEG Compression is considered a lossy compression even when set at 100% quality you loss some quality. That's why for simple graphics such as UI interfaces and backgrounds is generally better to use a lossless format such as PNG.
200kb isn't that big in 2014/2015
While it would be idea to decrease the size of the ...
13
Do you really need to follow the trend?
Don't ever do something because it's a trend. Do things because they're good for the user's experience because that is what's best for your company and your design. Think really hard about the implications that adding a large video to your site will have and weigh the other options you have. You don't have to use this ...
13
In Photoshop, make a brush like this
Then in the Brush Settings, add the following settings
Brush Tip Shape: Spacing 10%
Shape Dynamics: Size jitter 70%
Scattering: Scatter 360%, count 2
Noise
Note: my screen recorder seems to mess up the brush cursor, so please ignore that.
12
There's no automated way to set a color as transparent.
However, try Select > Color Range and choose "Yellows" from the drop down menu. Then create a layer mask based on that selection. You get some decent results.
It's not perfect. But it's then a matter of adjusting levels on the mask a bit and correcting for the color halos, just general refining.
...
12
There are many techniques to do this. One very simple one that I often use in practice is to use many colors on a similar palette and just generally paint them using the brush tool all over the place. It looks incredibly bad at first, until you apply the Filter→Blur→Gaussian Blur to taste.
The end results is a very simple, diffused, gradient-like, ...
11
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.
...
11
I'm going to ignore the actual picture in your question, and just answer the question implied in the title: How to create a PNG image the looks different on a black background than on a white one?
Specifically, the method I'll describe will allow you to combine any two grayscale images A and B into one PNG file C, so that C looks like A on a black ...
11
Yes, that would be very easy, I just opened up Gimp 2 my self and tried it out to make sure! :p Anyway, in the layers panel, right click and choose New Layer.
Then make sure you select White for the Layer Fill Type.
Now, click OK and move the new white layer to the bottom of all the current layers.
To change the layer color, select it and just paint it in ...
11
One way of doing it is to use the clone tool(). This tool basically lets you choose a source to copy from, then use it like a brush to paint the source over the destination.
To select a source, press Ctrl+Left Click with the cursor over the source, then you can begin drawing over the destination.
In this case, you have to make sure that the source is a ...
10
Depending on the context and who you're talking to, this is referred to as "keying" (also referred to as Chroma Key), "matting" (mostly video), "masking" (you'll come across "clipping mask" as a term which is interchangeable with "mask" in most cases) or extraction. These are all names for the same general technique, which is the basis of Compositing.
10
Since this is a relatively simple shape, I would just outline it with the pen tool and convert to a selection. Do note the little details around the corners and side buttons though. I would say that would take me a couple minutes at most.
9
Greenfish Icon Editor Pro has this functionality out of the box. It is a function called "Remove Matte", where you just specify the color component you want to be replaced with transparency. In your case red.
Here is the result of removing the red:
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