I am promoting my comment to an answer: The easy way is: You could draw in the original ‘frame’ itself instead of using gray image. The hard way (method you were trying to implement): backtorgb = cv2.cvtColor(gray,cv2.COLOR_GRAY2RGB) is the correct syntax.
You can skip the complex Canvas manipulation and do this entirely with Drawables, using LayerDrawable. You have one of two choices: You can either define it in XML then simply set the image, or you can configure a LayerDrawable dynamically in code. Solution #1 (via XML): Create a new Drawable XML file, let’s call it … Read more
As pointed out by LifeHacker, the following command will do this very easily: sips -Z 640 *.jpg To quote their explanation: “sips is the command being used and -Z tells it to maintain the image’s aspect ratio. “640” is the maximum height and width to be used and “*.jpg” instructs your computer to downsize every … Read more
In Xcode 10 and Swift 4.2, only the code completion function (or auto-complete) of the Xcode IDE has been discontinued for the old way. Here is the new way: Just type image literal and it will complete with default icon. Double click on this icon and it will open the media library right side … Read more
Original Answer: If you are ready to opt for CSS3, you can use css3 translate property. Resize based on whatever is bigger. If your height is bigger and width is smaller than container, width will be stretch to 100% and height will be trimmed from both side. Same goes for larger width as well. Your … Read more
You can write like this: img{ width:100%; max-width:600px; } Check this http://jsfiddle.net/ErNeT/
Once an image has been loaded in any way into the browser, it will be in the browser cache and will load much faster the next time it is used whether that use is in the current page or in any other page as long as the image is used before it expires from the … Read more
If you have imagemagick installed, convert source.jpg -colorspace Gray destination.jpg (true grayscale only) convert source.jpg -monochrome destination.jpg (true black and white) convert source.jpg -separate destination.jpg (separate into gray channels) If you don’t care about losing the original file: mogrify -colorspace Gray file.
EDIT Changed aspect=”normal to aspect=”auto’ since that changed in more recent versions of matplotlib (thanks to @Luke19). Assuming : import matplotlib.pyplot as plt To make a figure without the frame : fig = plt.figure(frameon=False) fig.set_size_inches(w,h) To make the content fill the whole figure ax = plt.Axes(fig, [0., 0., 1., 1.]) ax.set_axis_off() fig.add_axes(ax) Then draw your … Read more
Latest and greatest way to do this: Node supports file and buffer operations with the base64 encoding: const fs = require(‘fs’); const contents = fs.readFileSync(‘/path/to/file.jpg’, {encoding: ‘base64’}); Or using the new promises API: const fs = require(‘fs’).promises; const contents = await fs.readFile(‘/path/to/file.jpg’, {encoding: ‘base64’});