Questions about making the opaque backgrond of an image transparent.

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133
votes
3answers
672k 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 ...
8
votes
9answers
38k 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) ...
74
votes
4answers
342k 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 ...
18
votes
2answers
17k 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
5answers
11k 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 ...
8
votes
4answers
62k 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 ...
7
votes
5answers
48k 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
23k 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
2k 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 ...
32
votes
5answers
117k 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 ...
15
votes
5answers
71k 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, ...
6
votes
1answer
15k 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 ...
4
votes
4answers
5k views

Is there a way to do a perfect background removal on hair?

Is there a way to do a perfect die cut on a person's hair or on dog's fur or others like difficult hair styles? Similar to this:
-2
votes
1answer
2k views

Making an out-of-focus selfie into an ID photo

I need an ID photo with a white background (that's studio type) but my best shot is only a self-portrait photograph. I need instructions to replace the out-of-focus background with white, and canvas ...
6
votes
3answers
6k 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, ...
5
votes
2answers
8k 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 ...
2
votes
2answers
193 views

How to remove neutral background in photoshop?

I have found that so many photographers use a grey backdrop or grey background for most of their portait photographs. I assume that it's because grey is easy to remove and replace with any desired ...
5
votes
6answers
1k views

Technical name for the removal of an image background

Can someone remind me what the technical name is for the removal of a background from a still image? Our photographer told me years ago, but I've since forgotten and it gets embarrassing!
10
votes
3answers
594 views

Techniques for cutting out hair accurately

I use the Pen Tool for 90% of the situations where I need to cut someone or something from a photo but sometimes it gets tricky, especially when it comes to hair. Let's take the following image for ...
5
votes
2answers
3k views

Gimp: removing background from product images

I often have the task of making the background of product images pure white. While preserving the best possible image quality, what is the quickest way to adjust colors such that the background ...
3
votes
3answers
133 views

gimp: Background removal gives gray fringe, when exported as pdf

I cut a region out of this wikimedia commons picture: I simply used the free select tool to cut out the part (ctrl+x) and inserted it into another image without background. However, when I export ...
2
votes
1answer
161 views

Change background color from brown to white (remove sepia)

I need to change this image's color background to white, because this takes up too much ink. I have tried to change the background to white and keep the text/map. It's for a National History Day ...
0
votes
1answer
2k views

Gimp: how to remove background noise/artifacts and enhance handwritten text

I have a lots of scanned handwritten lecture notes (PDFormat) and I want to improve their readability (I have uploaded an example). In particular I'd like to remove the "squares" on the back. I would ...