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image.onload event and browser cache
...;
img.onload = function () {
alert("image is loaded");
}
img.src = "img.jpg";
Fiddle - tested on latest Firefox and Chrome releases.
You can also use the answer in this post, which I adapted for a single dynamically generated image:
var img = new Image();
// 'load' event
$(img).on('load', fun...
Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?
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<img src="http://lorempixel.com/output/people-q-c-320-320-2.jpg"/>
</div>
<div class="cell">
<img src="http://lorempixel.com/output/people-q-c-320-320-7.jpg"/>
</div>
</div>
</div>
And the CSS:
.content {
...
Django Rest Framework File Upload
...parser_classes = (FileUploadParser, )
def post(self, request, format='jpg'):
up_file = request.FILES['file']
destination = open('/Users/Username/' + up_file.name, 'wb+')
for chunk in up_file.chunks():
destination.write(chunk)
destination.close() # Fi...
How can I extract a good quality JPEG image from a video file with ffmpeg?
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To output a series of images:
ffmpeg -i input.mp4 -qscale:v 2 output_%03d.jpg
See the image muxer documentation for more options involving image outputs.
To output a single image at ~60 seconds duration:
ffmpeg -ss 60 -i input.mp4 -qscale:v 4 -frames:v 1 output.jpg
This will work with any video i...
When to use IMG vs. CSS background-image?
...on a div's background image:
#some_div {
background-image:url(image_1.jpg);
-webkit-transition:background-image 0.5s;
/* Other vendor-prefixed transition properties */
transition:background-image 0.5s;
}
#some_div:hover {
background-image:url(image_2.jpg);
}
This saves any ki...
How to save a BufferedImage as a File
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File outputfile = new File("image.jpg");
ImageIO.write(bufferedImage, "jpg", outputfile);
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Image library for Python 3
... PyQt4.
They both support Python 3.
Here is a simple example that loads a JPG image, draws an antialiased circle of radius 10 at coordinates (20, 20) with the color of the pixel that was at those coordinates and saves the modified image as a PNG file:
from PySide.QtCore import *
from PySide.QtGui ...
Twitter image encoding challenge [closed]
...nds.
http://caca.zoy.org/raw-attachment/wiki/img2twit/Mona_Lisa_scaled.jpg
http://caca.zoy.org/raw-attachment/wiki/img2twit/twitter2.png
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How to convert the background to transparent? [closed]
...
File menu/Save Image
GIF/PNG/ICO image file formats support transparency, JPG doesn't!
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How do I save a UIImage to a file?
...filePath = [imageSubdirectory stringByAppendingPathComponent:@"MyImageName.jpg"];
// Convert UIImage object into NSData (a wrapper for a stream of bytes) formatted according to JPG spec
NSData *imageData = UIImageJPEGRepresentation(image, 0.85f); // quality level 85%
[imageData writeToFile:filePath...