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Questions tagged [png-24]

For questions about PNG24 files, which are PNG files with RGB (8 bits per color) and optional GIF-style transparency.

A subset of possible png files. PNG24 files are RGB (8 bits per color) PNG files with either no transparency or only binary GIF-style transparency in which one color is named to be fully transparent. In the PNG specification these are called 8-bit, color-type 2 PNG files.

31 questions
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PHP Watermarking - Zubrag

I'm using zubrags PHP watermarking script (attached below) and it works great except when I try and use a PNG-24 as my watermark. The resulting image has a garbled, non-transparent watermark. I'm wondering if anyone could help explain what I would…
kimion09
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How to remove the alpha channel of a png-24 image by java？

I have a png-24 images,how can I do to remove its alpha channel?Or how to convert it to png-8 format? Here is my codes,but it can't be worked. BufferedImage src = ImageIO.read(source); AffineTransform xform=AffineTransform.getScaleInstance(1.0,…
Reevs Li
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Transparent background png image issue in IE6

background image of type PNG is not transparent in ie6
user154928
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PNG8+Alpha from Fireworks (colormap) are different/smaller than from elsewhere (RGBA). Why?

In Fireworks, when you export a PNG8 file with alpha transparency, the resulting file will be something like this: png8-fireworks.png: PNG image data, 500 x 500, 8-bit colormap, non-interlaced If you convert a 32bit PNG using other tools (PNGOUT,…
timkelty
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jquery pngfix not working

I have a site with a lot of bg png images. css like this: div#carousel ul#slides li.monitor{ background:url(../images/monitor.png) no-repeat center top; position:relative; } and I have jquery and pngfix included as such:
panzhuli
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How do you download content from a canvas with alpha values?

I am trying to download a png from a canvas with alpha values (semi-transparent stuff), but every time I download the canvas, all the alpha channels reset back to ff for some reason. Here is my code: const download = (canvas, filename) => { …
Azure
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Xcode not finding images from atlas folders when running

I have an app created in Xcode which has loads of images. To make it slimmer i created folders within Xcode as .atlas and made sure that these contained the (*.png) images i wanted. from the storyboard and XCode navigator i can see the png files,…
Wizz69
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Chrome Mac don't render very small PNGs very well

I have PNG-24 exported from Photoshop CS6 and it looks like this in Chrome. You can notice white strokes around triangles. Same PNG renders correctly in other browsers. Rendering in firefox is like this.
Pankaj Phartiyal
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png images with transparency disappear in IE9

link at first, the png images will load, then disappear in IE9. not quite sure. thanks. UPDATE. i have mod_pagespeed enabled, which seems to be related to the issue. i disabled the plugin, and the issue was resolved. any way to have it enabled, and…
vulgarbulgar
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Lib Png: Png24 To Png32 and Vice-Versa

I recently solved the Bitmap problem in my last post. Now I'm back with another Image problem. This time it's PNG. I'm using LibPng to read and write PNG files. I have a struct that holds BGRA information of each Pixel. I know that the pixels are…
Brandon
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Sprite/PNG graphics-heavy site, oh my!

I need to create a site that is very graphics-heavy (torn paper backgrounds with transparent shadows over textured graphics, etc.) One way that I was thinking of saving on file size was to drop all my background elements into one PNG. The issue is…
pinxi
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Solid backgrounds for PNG 24 in IE8

I did a search, and while there are many similar issues, there are just as many varied solutions, and I'm having trouble figuring out which one is specific to my issue as it's not quite the same as the others. The website is…
chenry
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How many bits per component do I have to specify for pngcrunch-optimized 24bit PNG files with alphatransparency?

CGBitmapContextCreate takes an parameter that's not very obvious to me: For example, for a 32-bit pixel format and an RGB color space, you would specify a value of 8 bits per component. I have created 24-bit PNG files with alphatransparency,…
Thanks
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"There is no support for creating maps in png24 format" error on Google Earth

There is a layer that I publish via GeoServer. WMS support is active on my layer. I can view it through OpenLayers. But when I try to view it with "Network Link (Not Overlay)" on Google Earth, I get the error "There is no support for creating maps…
firstlord
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Use png8 instead of png24 as RGB height map

I have a 1 band DEM geotiff, and a formula to convert altitude -> RGB and RGB -> altitude (something like this: https://docs.mapbox.com/help/troubleshooting/access-elevation-data). Using the formula (and GDAL/Python), I converted my geotiff to a 3…
Tim Autin
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