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Questions tagged [transparency]

Transparency is the property of being see-through; a transparent object reveals objects behind it. Transparency is also known as alpha blending. The opposite of transparency is opacity.

Transparency in technology is an attribute of a graphical object and refers to the degree to which the object can be seen through.

Objects can be layered on top of one another, the order of which is decided by a . An object which is rendered "on top of" another may have a transparency level where the object underneath is seen through the object on top, with the view of the object underneath blended () with that of the object on top.

Transparency is the opposite of .

See also:

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multiple transparent colors in animated gif with imagemagick?

Looking for a way to make multiple (In this case 4, but in the future arbitrary) colors in an animated gif transparent with imagemagick. I know I can use multiple -transparent commands, but when the animated gif is composed, it results in some…
Lazerr Tag
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Flash : preserve transparency when resizing picture

I use a flash program in my website to resize pictures before transfert, for preserve my bandwidth. But, when i try to transfer a .png file with transparency, the resize don't maintain transparency in the .png file result. It's a problem for use it…
Fred_Me
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Panel overlay not drawn over Labels

I have multiple GroupBoxes and Labels inside GroupBoxes etc. I am trying to make a simple translucent Panel to overlay all Controls, but it just refuses to work properly. I am using this custom Panel Control, but it does not cover Labels and other…
Danijel
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WPF Combobox bug when form allowtransparency=true

I have found the following in WPF: I have a form with AllowTransparency=true. Inside the form I put a Combobox. I add some items to the combobox. I run this application and click on the combobox. At first it does not seem to appear at all. On closer…
Ries
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Transparent PNG - BufferedImage contains not existing pixels - java

I have got BufferedImage and method getRGB(...) shows me pixel in position 456, 1959, but I cannot see any color in this position in any image editor. I have got two images with transparency. ImageOne was created in my java application. ImageTwo is…
fram4
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IE9 “tearing” background images behind scrolling blocks with background transparency

I've made a design that uses a static auto-scrolling block with a transparent background over parent block with a background image. In IE9, scrolling causes the parent background image to "tear" instead of remaining fixed like on the other A-level…
rasx
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How can to keep the transparancy of a png image in Python using pygame?

I am already struggling with this issue for quite some time, because I would like to keep the transparant background of a png image when using it in Python and pygame. If I use the code below, the transparant background becomes black. A screenshot…
Margaret
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Unity, Transparent Background and Multiple Monitors

I'm trying to learn a few things, but I'm kinda stuck and I don't know where to go from here. I'm either blind or just confused. I've been looking at some scripts from here: Answers.Unity Right now, I got the background transparency working on my…
Epicei
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Draw rgba colors on canvas instead of drawing transparently

Is there a way to draw on an HTML canvas such that the resulting image is transparent? I know you can set globalAlpha, but that will only affect how subsequent drawing operations work: setting globalAlpha=.5, then drawing black on red results in a…
Johannes Bauer
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I am using .getRGB() and .setRGB() to get a section of a BufferedImage, how do I also copy transparency?

I am using the following code to "crop an image", however it ignores transparency, so any BufferedImages obtained from this method are completely opaque, and there don't appear to be any .getARGB() or .setARGB() methods. How do I work around this? …
Troyseph
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Removing transparent watermark from an image - python

I am trying to remove a transparent watermark from an image. Here is my sample image: I would like to remove the text "Watermark" from the image. As you can see, the text is transparent. So I would like to replace that text to the original…
U13-Forward
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Drag and resize a transparent form

I have created a form (using WinForms, VS 2019, Framework 4.8), set the background image to an image I chose, set the background colour of the form to a specific colour and then specified that colour as the TransparencyKey. The opacity of the form…
John Dovey
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FFmpeg - add an animated gif (cropped by mask) to the video

I have 3 inputs: Video file: https://file.io/6jtUlnZ7TGmT Animated GIF with transparent background https://i.stack.imgur.com/nmJpw.gif Mask file (BW) the same resolution as the video https://i.stack.imgur.com/E1MCY.png I want to put the image on…
zeromodule
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Matplotlib plots lose transparency when saving as pdf

When saving a plot in pdf format matplotlib doens't retain transparency. I have tried in svg instead and here it does, so it is able to save the figure with transparency. I have seen solutions such as in Matplotlib plots lose transparency when…
Morten Nissov
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Saving image with backgroundimage to file in C#

I have a picturebox on the form, with BackgroundImage property set to certain image. The rest of the image has certain transparent areas, so that background image is shown in those areas. I want to save it to the file, but there is no save method…
Tofig Hasanov
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