ytmp | Play videos from video hosting services | Video Utils library
kandi X-RAY | ytmp Summary
kandi X-RAY | ytmp Summary
Play videos from video hosting services without the need of Flash
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QUESTION
I am trying to optimize a Matlab script (below) that finds the bounding boxes to functional values of all lower left triangles in a 2D space. The code goes through all the triangles and then sorts the nodes in ascending order based on the functional values. This seems inefficient.
Is there some way that I could sort the functional values before the loops but still retain the nodes in the triangle groups? Or some other smart way to speed things up?
...ANSWER
Answered 2019-Apr-30 at 12:46You can use meshgrid to generate all the indices, then just adapt the code to obtain the desired ouput:
QUESTION
I just started using CImg libraries and I would like to test it with raw data, but I am experiencing big problems to figure out why I cannot obtain correct results.
My RGB24 raw file format is RGB interleaved (RGBRGBRGB ...) while CImg stores data as explained here.
The (last) test code I wrote is this, where I collect all the possible 4! = 24 combination for permute_axes method
...ANSWER
Answered 2018-Jan-12 at 17:42So you have interleaved data and want it non-interleaved to be able to let CImg functions work with it.
So why didn't you just do exactly what the blog post you referenced advised under IMPORTANT
QUESTION
I have downloaded Caltech101. Its structure is:
#Caltech101 dir
#class1 dir
#images of class1 jpgs
#class2 dir
#images of class2 jpgs
...
#class100 dir
#images of class100 jpgs
My problem is that I can't keep in memory two np arrays x
and y
of shape (9144, 240, 180, 3)
and (9144)
. So my solution is to overallocate a h5py dataset, load them in 2 chunks and write them to file one after the other. Precisely:
ANSWER
Answered 2017-Jan-25 at 11:12You could shuffle the file paths before reading the image data.
Instead of shuffling the image data in memory, create a list of all file paths that belong to the dataset. Then shuffle the list of file paths. Now you can create your HDF5 database as before.
You could for example use glob
to create the list of files for shuffling:
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