Questions about making the opaque backgrond of an image transparent.

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42
votes
2answers
175k views

Making the background of an image transparent in Gimp

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 ...
12
votes
2answers
32k views

Replacing whiteness with transparency in CS6

I want to replace the whiteness in pixels with transparency in the same way as described in this question - i.e. for lighter pixels to be made proportionally as transparent. All solutions found via ...
7
votes
6answers
18k views

How to completely remove the background from an image?

I have an image (a logo) that was on a black background. I have used Photoshop's (CS5) Background Eraser Tool to remove the background. This is great except that there are black (well grey/black) ...
5
votes
5answers
4k views

How to remove gray background on gray picture?

I have a scan of an old anatomic atlas; it's grayscale and not really bright. I suppose it's a copy of an engraving. My question is: is it possible to remove this background relatively easy? Or magnet ...
6
votes
3answers
12k views

How can I remove the unwanted background from a scanned handwritten signature?

I need to upload my signature in a PDF document, but I do not know how to edit the background of this image. I wish to remove the bluish-tint background, and make it pure white. Can anyone help me ...
13
votes
4answers
47k views

Add transparency to an existing PNG

I'd like to use this image on a web site. What I need to do is change the background from black to transparent, so I can use the arrow on my site maintaining the page background. I used Gimp to ...
11
votes
2answers
7k 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 ...
4
votes
1answer
5k views

Using GIMP, can you “erase” a color?

I'm presently working on an iOS application and I am attempting to reverse engineer their standard alert dialog window. I have managed to figure out what the alpha value on the background it uses is ...
12
votes
4answers
42k 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, ...
5
votes
5answers
14k 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
5answers
9k views

With Photoshop, how to batch replace white background with transparent in the image

I have got hundreds images of products with clear white backgrounds. I would like to change the white background color to become transparent. Is there a means of batch processing this particular ...
1
vote
2answers
96 views

How to remove the textured background from a handwritten text document?

I'm using Adobe Photoshop. I noticed that there are other questions similar to this one. However, the reason I'm posting my question is, when I followed the instructions in the other question about ...
5
votes
2answers
6k views

How can I fix the edges of foreground objects pasted onto a new background?

How can I cut out a foreground object, e.g. a person, from one picture and superimpose it onto a new background without making the edges look bad? The problem I've come across is that if I have for ...
4
votes
3answers
3k views

How do I blend a black-background fire image in Photoshop?

This fire image: As you can see, it has a black background, which I can't delete (because it would probably destroy the smooth-looking fire effect). I want to place some fire in a photo. However, ...