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Display image as grayscale using matplotlib
...asarray(image)
plt.imshow(arr, cmap='gray', vmin=0, vmax=255)
plt.show()
If you want to display the inverse grayscale, switch the cmap to cmap='gray_r'.
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How to print the ld(linker) search path
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You can try to manually specify library paths with the -L option to GCC, which I think (not sure) will override the system library paths. You could also try to set the LIBRARY_PATH env variable before compiling: $ LIBRARY_PATH=/somedir/ gcc ...
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How do I make a semi transparent background?
... opacity while the content of the box will continue to have 100% opacity.
If you use opacity:0.5, the content will be faded as well as the background. Hence do not use it.
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Get div height with plain JavaScript
...unction. Please note that getBoundingClientRect will return an empty rect if the element's display is 'none'.
Example:
var elem = document.getElementById("myDiv");
if(elem) {
var rect = elem.getBoundingClientRect();
console.log("height: " + rect.height);
}
UPDATE:
Here is the same code writt...
The simplest way to resize an UIImage?
...tMode to one of the resizing options.
Or you can use this utility method, if you actually need to resize an image:
+ (UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize {
//UIGraphicsBeginImageContext(newSize);
// In next line, pass 0.0 to use the current device's pixel...
How to create multidimensional array
... == 'input3';
mixed.row2[1] == 'input4';
http://jsfiddle.net/z4Un3/
And if you're wanting to store DOM elements:
var inputs = [
[
document.createElement('input'),
document.createElement('input')
],
[
document.createElement('input'),
document.createElem...
Java: How to set Precision for double value? [duplicate]
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You can't set the precision of a double (or Double) to a specified number of decimal digits, because floating-point values don't have decimal digits. They have binary digits.
You will have to convert into a decimal radix, either via BigDecimal or DecimalFormat, depending on what you w...
How can I clear or empty a StringBuilder? [duplicate]
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You can leave a little comment if you're afraid future developers won't understand
– krtek
Mar 4 '11 at 10:36
308
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java.lang.OutOfMemoryError: Java heap space in Maven
...computer to computer (stackoverflow.com/a/10463133/32453). Also note that if you're using jacoco you're supposed to set argLine a different way stackoverflow.com/questions/12269558/maven-jacoco-plugin-error
– rogerdpack
Apr 30 '15 at 18:41
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Windows Forms - Enter keypress activates submit button?
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If you set your Form's AcceptButton property to one of the Buttons on the Form, you'll get that behaviour by default.
Otherwise, set the KeyPreview property to true on the Form and handle its KeyDown event. You can check for...