Everything you ever wanted to know about transparency but were afraid to ask.

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5
votes
2answers
3k views

Why does my transparent PNG not look good?

I want to convert a JPG to transparent and using GIMP I added alpha layers and transparency same way I make a GIF transparent I converted it to PNG but it doesn't display well when I load it on my ...
5
votes
2answers
8k views

Making the background of an image transparent

I have some jpg images and I need for each of them to have a transparent background. I have GIMP as a graphic tool. I need to put them in a web page and I need to see just the main element and have a ...
1
vote
2answers
2k views

Spot Color Transparency and Screens in Illustrator

(Illustrator CS5) I have a design that will be printed on a line printer. Possible are up to 7 colors, or a 4-color process with 3 line colors. I'm currently sticking to PMS only (only 5 PMS colors ...
1
vote
2answers
423 views

How to make a transparent image a non transparent one?

I am a newbie to Photoshop and I have a PSD file that contains a transparent button. Now I want to duplicate that button and move it to somewhere else. When I moved it I realized that the button is ...
3
votes
5answers
4k views

Replace black background with a transparent background

How can I add transparent background on this image instead of black background, but I also would like to keep the partial transparency effect on some of the particles and particles borders. Could ...
2
votes
2answers
996 views

Photoshop - Extracting a transparent shadow from an image

I have a layer that contains a brushed metal texture. The layer has an inner shadow effect. I'd like to extract just that shadow with transparency, so I can later superpose the pure background ...
1
vote
2answers
263 views

Compositing transparent paths so topmost pixel wins

I'm having difficulty wording what it is I want to accomplish, but I'll try to explain. Let's start with the images below: (a) (b) Image (a) shows the image as I have it right now, ...
3
votes
2answers
4k views

How to make an animated gif with a transparent background without overlap?

When I try to make a gif with two frames both of which have a transparent background in GIMP, what happens is that the first frame looks OK, then the second frame appears on top of it, such that you ...
3
votes
3answers
757 views

Formula for finding out the result of a color after applying x% opacity to it?

I have 2 colors #a1a2a4 black (#000000) white (#ffffff) Now I need to know how much opacity (in a percent) must I apply to the second color (black) against a background of the third color (white) ...
5
votes
3answers
10k views

Copy & Pasting from Photoshop to Illustrator loses transparency

I often run into this issue. I'm creating a file in Photoshop with masked layers etc. I want to make the final output available for some mock-ups in Illustrator, so I rasterize the layers and marquee ...
8
votes
4answers
20k views

Photoshop CS5: Setting a black background to transparent

I have an image of smoke over a black background. If I set the blending mode of this layer to screen, the image's background is perfectly edited out, however if there isn't another layer below this, ...
9
votes
8answers
2k views

Transparency to unpremultiplied RGB + Alpha

I have a transparent layer in Photoshop CS5 (so internally, it's most probably stored as unpremultiplied RGB component plus an alpha component per pixel). Now I want to transform this to an opaque ...

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