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Detect when an image fails to load in Javascript
...pixels.
TIP 2 : for use with portrait of people, use object-position: 20% 50%;
CSS only for background-img
For missing background images, I also added the following on each background-image declaration :
background-image: url('path-to-image.png'), url('no-img.png');
NOTE : not working ...
Tools for JPEG optimization? [closed]
...in progressive mode. Another image (27 kB) was reduced to 23 kB. That's 15-20% savings without loss in quality!
– chris166
Jun 12 '09 at 13:51
2
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Test for equality among all elements of a single vector
...e zero_range is faster. The discrepancy is between slightly faster (maybe 20%) to 10x always in favour if this answer. It tried a number of methods.
– John
Jan 22 '11 at 8:38
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Converting RGB to grayscale/intensity
... Y -> L*
In color science, the common RGB values, as in html rgb( 10%, 20%, 30% ),
are called "nonlinear" or
Gamma corrected.
"Linear" values are defined as
Rlin = R^gamma, Glin = G^gamma, Blin = B^gamma
where gamma is 2.2 for many PCs.
The usual R G B are sometimes written as R' G' B' (R' ...
WPF: Setting the Width (and Height) as a Percentage Value
...e textbox appears to be 80% size of it's parent (well right side margin is 20%) and stretches when needed.
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Rank items in an array using Python/NumPy, without sorting array twice
...ys, but for anything smaller (n < 100), double argsort is faster (about 20% faster for n=100, and about 5 times faster for n=10). So if you have to do a lot of rankings across lots of small sets of values, this method is much better.
– naught101
Aug 18 '15 a...
Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
...e amount of records in the result set on which an index is applied exceeds 20% of the total amount of records of the parent table, then the index will be ineffective. In practice each architecture will differ but, the idea is still correct.
Secondary Indexes (and that is very specific to mysql) sho...
What's so great about Lisp? [closed]
...occurring cases, and stop pretending that all cases are equally likely. If 20% of your customers are in NYC and 80% in LA, does it make sense to sit on the fence, somewhere on the Kansas/Oklahoma border, so as to remain "unbiased" in geographical terms? Or more sense to go where most of the customer...
Capturing touches on a subview outside the frame of its superview using hitTest:withEvent:
...pplication frame, and a subview MenuView which takes up only the bottom ~20%, and then MenuView contains its own subview ButtonView which actually resides outside of MenuView 's bounds (something like this: ButtonView.frame.origin.y = -100 ).
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Android studio using > 100% CPU at all times - no background processes appear to be running
...to have a HUGE impact toward the high cpu usage - it was 150% and now it's 20%, more or less.
I'm on OS X
Go to: Preferences > Version Control > Background. Now listed under 'Background Operations' are 6 options.
I disabled the first three options which are:
Perform update on VCS in back...