You can do it with a help of a simple bash script. Navigate to the directory where your images reside and execute this: $ for file in * > do > cwebp -q 80 “$file” -o “${file%.png}.webp” > done You can change the output file name, as you want. But should end with a .webp … Read more
I’m assuming that you’re running this in a servlet context. If it’s affordable to check the content type based on just the file extension, then use ServletContext#getMimeType() to get the mime type (content type). Just check if it starts with image/. String fileName = uploadedFile.getFileName(); String mimeType = getServletContext().getMimeType(fileName); if (mimeType.startsWith(“image/”)) { // It’s an … Read more
Use cv2.drawContours() with thickness=cv2.FILLED: cv2.drawContours(img, contours, -1, color=(255, 255, 255), thickness=cv2.FILLED)
As of June 2012, FastImage which “finds the size or type of an image given its uri by fetching as little as needed” is a good option. It works with local images and those on remote servers. An IRB example from the readme: require ‘fastimage’ FastImage.size(“http://stephensykes.com/images/ss.com_x.gif”) => [266, 56] # width, height Standard array assignment … Read more
I use Roger’s Online Equation Editor. PNG, colors, transparent background and anti-aliasing are all included.
When showing Bitmap in ImageView from a file first decode it with the help of BitmapHelper.decodeFile(picturePath, 200, 200, true) this will return compressed Bitmap so that while encoding this Bitmap you can handle high resolution images as well as heavy size images upto 100 MB of file. After decoding file set it to your ImageView … Read more
You’re very close, but there’s one mistake – init and animate should return iterables containing the artists that are being animated. That’s why in Jake’s version they return line, (which is actually a tuple) rather than line (which is a single line object). Sadly the docs are not clear on this! You can fix your … Read more
A 1×1 grey pixel in 125 bytes using arithmetic coding, still in the JPEG standard even if most decoders can’t decode it: ff d8 : SOI ff e0 ; APP0 00 10 4a 46 49 46 00 01 01 01 00 48 00 48 00 00 ff db ; DQT 00 43 00 03 02 … Read more
Relax, you’re about to understand this mess. Just notice that 2 * 375×667 = 750×1334. A pixel is not a pixel The key thing is: one device pixel is different from one CSS pixel. They are the same in low pixel density devices like your computer screen (96 dpi). However, high pixel density devices like … Read more