png

Slick PNGDecoder Error - java.lang.UnsupportedOperationException: Unsupported format for this image

由 时光毁灭记忆、已成空白 提交于 2019-12-25 17:14:42
问题 I'm making a simple little Galaga clone in Java with the Slick library. Unfortunately, I've run into an issue in which I get this error, followed by the game closing: Mon May 12 08:54:32 EDT 2014 WARN:class org.newdawn.slick.opengl.PNGImageData failed to read the data java.lang.UnsupportedOperationException: Unsupported format for this image at org.newdawn.slick.opengl.PNGDecoder.decode(PNGDecoder.java:272) at org.newdawn.slick.opengl.PNGImageData.loadImage(PNGImageData.java:97) at org

Odd transparency effect when merging two .png's with transparency in PHP-GD

由 ╄→尐↘猪︶ㄣ 提交于 2019-12-25 17:03:26
问题 Merging two images with transparent sections produces the following composite image: I'm wondering why the transparent section of the image I've overlayed onto the green background shows up as such? Anyone? $base = imagecreatefrompng('application/assets/images/vel1_bg.png'); imagealphablending($base, false); imagesavealpha($base, true); list($baseWidth, $baseHeight, $type, $attr) = getimagesize('application/assets/images/vel1_bg.png'); $user_board_items = $this->config->item('user_board_items

How to use python to imitate the opening and saving of an image file in an image editor?

由 旧街凉风 提交于 2019-12-25 09:08:44
问题 I encountered a certain problem with corrupt .png image files* that I was able to overcome by simply opening them in an image editor (Apple's Preview) and saving them back, without making any explicit changes. I have thousands of similarly corrupt image files that need to be subjected to the same procedure. Is there a way to automate it in python? The following naive code doesn't work: >>> with open('an_image.png', 'rb') as f: ... data = f.read() ... with open('an_image.png', 'wb') as f: ...

Managing animated images in PHP

由 跟風遠走 提交于 2019-12-25 04:55:28
问题 I would like to have some information about this topic. Everybody knows that it's possible to manage and even create images with PHPs gd-library, but is it possible to edit animated GIFs without losing the animation? Hope that someone is wise enough to answer this :) Martti Laine 回答1: It is said on the website of Boutell, the original makers of GD that there are animation functions to GD, but I have never seen them mentioned anywhere in the PHP manual. There are several external classes to

Universal PNG fix script?

由 ℡╲_俬逩灬. 提交于 2019-12-25 04:42:20
问题 Does anyone know of a universal, one stop PNGFix script that isn't dependent on a specific library (like jQuery or Prototype?). I just want to drop it in the header and have it take care of all transparent .png's from my stylesheets and markup. Can't seem to find one that will do the job. 回答1: We used to use this at my company, until we finally moved off of IE6: http://www.twinhelix.com/css/iepngfix/. Just google "png fix" or "IE6 png fix" and you'll find dozens of resources. But as others

js实现翻牌效果

由 别来无恙 提交于 2019-12-25 04:21:56
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0,viewport-fit=cover"> <title>翻牌抽奖</title> <style> body {background: #E7244B;} *{margin:0;padding:0}a img{border:0} a{text-decoration:none;-webkit-tap-highlight-color:rgba(0,0,0,0);text-align: center;} .top {width: 100%;} .weui-grid {padding: 0;} .weui-grid:before {border: 0;} .weui-grid:after {border: 0;} .weui-grids:before {border: 0;} .img {width: 90%;margin-top: 1vw;height: 33.9vw} .info {display: none;margin-top: 1vw;width: 0;height: 33.9vw;} .shelter {opacity: 0.5;filter: alpha

Very strange ppi of png [closed]

由 落爺英雄遲暮 提交于 2019-12-25 04:14:12
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . I have some png files, and their ppi were 300. Now I've change the ppi to 72, but the size of the pictures even became larger! For example, a.png was 190k, 300ppi, now it becomes 400+k, 72ppi, and it is always 320*460, what's happening, how should I do? I was meant to reduce the pictures's size.. 回答1: ppi stands

Getting multi-threaded safe RGBA values from a decoded PNG image running Android

由 拟墨画扇 提交于 2019-12-25 03:27:14
问题 Using Delphi 10.2.3: I need to decode multiple PNG files in multiple background threads to ensure the UI thread is not freezing while the images are being decoded. I need access to the RAW RGBA values from the decoded PNG without ever using TBitmap as it's not thread safe under Android. I've seen references to using JBitmap, but my searches didn't yield any sample code demonstrating actual JBitmap use under Delphi so any help would be appreciated. 来源： https://stackoverflow.com/questions

Getting multi-threaded safe RGBA values from a decoded PNG image running Android

由 做~自己de王妃 提交于 2019-12-25 03:27:04
问题 Using Delphi 10.2.3: I need to decode multiple PNG files in multiple background threads to ensure the UI thread is not freezing while the images are being decoded. I need access to the RAW RGBA values from the decoded PNG without ever using TBitmap as it's not thread safe under Android. I've seen references to using JBitmap, but my searches didn't yield any sample code demonstrating actual JBitmap use under Delphi so any help would be appreciated. 来源： https://stackoverflow.com/questions

Is there an onload function for html canvas?

由 杀马特。学长 韩版系。学妹 提交于 2019-12-25 03:15:31
问题 My goal is to create an array of imageData from a series of png images. In order to do this I use a for loop to go through the images, put them in the canvas and then retrieve and store the created imageData in an array. The problem is that the image does not have enough time to be loaded in the canvas. My solution for now is to have a timer leave enough time but it's horrible. I can't seem to find any solution to this problem. Is there a way to have an "onload" function for the canvas? for
订阅 png