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Algorithm to detect corners of paper sheet in photo
...ants are carefully picked
MORPH = 9
CANNY = 84
HOUGH = 25
img = cv2.cvtColor(orig, cv2.COLOR_BGR2GRAY)
cv2.GaussianBlur(img, (3,3), 0, img)
# this is to recognize white on white
kernel = cv2.getStructuringElement(cv2.MORPH_RECT,(MORPH,MORPH))
dilated = cv2.dilate(i...
How to flip UIImage horizontally?
...
Objective-C
UIImage* sourceImage = [UIImage imageNamed:@"whatever.png"];
UIImage* flippedImage = [UIImage imageWithCGImage:sourceImage.CGImage
scale:sourceImage.scale
orientation:UIImageOrientationUpMirrored...
How can you profile a Python script?
...ut()):
code_to_profile()
Either of these will generate a pycallgraph.png file similar to the image below:
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Error in plot.new() : figure margins too large in R
...nt for me. I had to increase the image size, or decrease the resolution in png(filename="myfile.png", res=150, width = 1000, height = 1000)
– vanao veneri
Mar 6 '17 at 10:37
a...
How to set time delay in javascript
...he image a second time. The delay should be 1000ms. So you would click the img.jpg then the img_onclick.jpg would appear. You would then click the img_onclick.jpg image there should then be a delay of 1000ms before the img.jpg is shown again.
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Two color borders
...r the inner border
normal border for the outer one.
Example:
HTML:
<img src="http://cdn3.thumbs.common.smcloud.net/common/8/6/s/863444wpPN.jpg/r-0,500-n-863444wpPN.jpg" alt="malkovich" />
CSS:
img {
padding: 1px;
background: yellow;
border:1px solid black;
}
TEST(JSFiddle)...
How to check the extension of a filename in a bash script?
...it here in case it helps someone. if [[ ( $file == *.csv ) || ( $file == *.png ) ]]
– joelostblom
Feb 7 '15 at 1:09
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Can scripts be inserted with innerHTML?
.../have-your-dom-and-script-it-too
So use this instead of script tags:
<img src="empty.gif" onload="alert('test');this.parentNode.removeChild(this);" />
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What is the best java image processing library/approach? [closed]
...lp to get some new links to projects that might be interesting for folks.
imgscalr is pure-Java image resizing (and simple ops like padding, cropping, rotating, brighten/dimming, etc.) library that is painfully simple to use - a single class consists of a set of simple graphics operations all defin...
How to get HTTP Response Code using Selenium WebDriver
...s://www.google.com/images/branding/googlelogo/2x/googlelogo_color_120x44dp.png 200 image/png
https://consent.google.com/status?continue=https://www.google.com&pc=s&timestamp=1531511954&gl=GB 204 text/html; charset=utf-8
https://www.google.com/images/branding/googlelogo/2x/googlelogo_colo...