If you wish to use CV2, you need to use the resize function. For example, this will resize both axes by half: small = cv2.resize(image, (0,0), fx=0.5, fy=0.5) and this will resize the image to have 100 cols (width) and 50 rows (height): resized_image = cv2.resize(image, (100, 50)) Another option is to use scipy module, … Read more
If you only define one dimension on an image the image aspect ratio will always be preserved. Is the issue that the image is bigger/taller than you prefer? You could put it inside a DIV that is set to the maximum height/width that you want for the image, and then set overflow:hidden. That would crop … Read more
You need ImageMagick and GhostScript <?php $im = new imagick(‘file.pdf[0]’); $im->setImageFormat(‘jpg’); header(‘Content-Type: image/jpeg’); echo $im; ?> The [0] means page 1.
from PIL import Image background = Image.open(“test1.png”) foreground = Image.open(“test2.png”) background.paste(foreground, (0, 0), foreground) background.show() First parameter to .paste() is the image to paste. Second are coordinates, and the secret sauce is the third parameter. It indicates a mask that will be used to paste the image. If you pass a image with transparency, then … Read more
I’d suggest using the request module. Downloading a file is as simple as the following code: var fs = require(‘fs’), request = require(‘request’); var download = function(uri, filename, callback){ request.head(uri, function(err, res, body){ console.log(‘content-type:’, res.headers[‘content-type’]); console.log(‘content-length:’, res.headers[‘content-length’]); request(uri).pipe(fs.createWriteStream(filename)).on(‘close’, callback); }); }; download(‘https://www.google.com/images/srpr/logo3w.png’, ‘google.png’, function(){ console.log(‘done’); });
No. I’d love for someone to correct me, but I accepted the load/resize approach you tried as a compromise. Here are the steps for anyone browsing: Calculate the maximum possible inSampleSize that still yields an image larger than your target. Load the image using BitmapFactory.decodeFile(file, options), passing inSampleSize as an option. Resize to the desired … Read more
I think you are converting the data a bit more than you need to. Once you create the buffer with the proper encoding, you just need to write the buffer to the file. var base64Data = req.rawBody.replace(/^data:image\/png;base64,/, “”); require(“fs”).writeFile(“out.png”, base64Data, ‘base64′, function(err) { console.log(err); }); new Buffer(…, ‘base64’) will convert the input string to a … Read more
A pure CSS solution with no wrapper div or other useless code: img { object-fit: cover; width: 230px; height: 230px; }
There’s a really good paper by Microsoft Research called To Blob or Not To Blob. Their conclusion after a large number of performance tests and analysis is this: if your pictures or document are typically below 256KB in size, storing them in a database VARBINARY column is more efficient if your pictures or document are … Read more
You can like this… document.getElementById(‘my-image’).ondragstart = function() { return false; }; See it working (or not working, rather) It seems you are using jQuery. $(‘img’).on(‘dragstart’, function(event) { event.preventDefault(); });