how to identify webp image type with python
python,image,python-imaging-library,webp
The imghdr module doesn't yet support webp image detection; it is to be added to Python 3.5. Adding it in on older Python versions is easy enough: import imghdr try: imghdr.test_webp except AttributeError: # add in webp test, see http://bugs.python.org/issue20197 def test_webp(h, f): if h.startswith(b'RIFF') and h[8:12] == b'WEBP': return...
converting .webp to .jpeg using Java
It seems that ImageIO is not able to read webp images. As you can read in the docs, the method read returns null in this case. I think that you have to use an additional library to read and write webp images.
How to convert webP image format to normal ? php
Using libwebp: ( I assume $file is an absolute path and libwebp is installed) $regex="/^(.*)(\.webp)$/"; if(preg_match($regex, $file)){ $out=preg_replace($regex, "${1}.png", $file); exec("dwebp $file -o $out"); } Didn't test, but should work......
Check if the device supports webP image format
As far as I know there is no API for this. So solution is to try to decode some webp image on device and check if it returns Bitmap. This can be implemented like this: import android.graphics.Bitmap; import android.graphics.BitmapFactory; public class WebPUtils { //states private static final int NOT_INITIALIZED =...
Error decoding animated webp iOS
Managed to decode animated .webp using the code snippet at the top of this header which also contains explanations of the data structures used. static NSDictionary* DecodeWebPURL(NSURL *url) { NSMutableDictionary *info = [NSMutableDictionary dictionary]; NSMutableArray *images = [NSMutableArray array]; NSData *imgData = [NSData dataWithContentsOfURL:url]; WebPData data; WebPDataInit(&data); data.bytes = (const...
Image size is increased when converted from jpg to webp with quality value 100
The problem you face is that with JPEG there is are large number of variables you can manipulate to get different compression. That is the benefit you get from lossy compression. Lossless compression tends to have few (if any options). In lossless compression, the tradeoff is time vs. compression. In...
imagewebp (php) creates corrupted webp files
For those of you running into the same problems as I did, here is a link to an (at this time) open PHP bugtracker that is - to my knowledge - the source of the problem. https://bugs.php.net/bug.php?id=66590 It is sad indeed that this is still not fixed, but we can...
convert data URI from png to webp
First export as image/png, then convert to webp. There's no other way unless you build nodeJS yourself with your own modifications (complex!). To convert a png image to webp, use a library like https://github.com/lovell/sharp or https://github.com/Intervox/node-webp and clean up the source image after converting is done. Currently, only Chrome supports...
Internet Explorer and Firefox not showing all images on page
html,internet-explorer,firefox,webp
It's because the image in question is not a JPEG (or GIF or PNG) but rather Google WebP, and Internet Explorer does not natively support such images (and neither do Firefox or Safari for that matter). The easiest solution is to just convert it to JPG....