Program learn image quality

Is it possible? Relying on the size and resolution.
October 8th 19 at 01:33
6 answers
October 8th 19 at 01:37
You may want to delve into the metadata, rather not say.
This is not accurate. You can save the already "bad" image with a "good" quality. - arielle_OReilly commented on October 8th 19 at 01:40
October 8th 19 at 01:39
And what if you want to build? What is your "quality" images? :)
Apparently this refers to the quality of the picture. There is such parameter as definition picture. - arielle_OReilly commented on October 8th 19 at 01:42
Yes, it can be called as clarity. - Allene_Crona78 commented on October 8th 19 at 01:45
October 8th 19 at 01:41
And if you check characteristic format loss?
For example for the jpeg noise, blur, Squareness.
To train the neural network and forward.

This is all theoretical considerations, I will be glad to comments.
October 8th 19 at 01:43
Generally, "quality" can be linked to a purely mathematical things and looking at the spectrum (or Fourier decomposition by wavelets), and then to check on how "good" the picture (for example, if there is little spatial frequencies, this simple and clear geometry)
There may be issues associated with what is depicted in the picture.
I spent some time trying to write a fast algorithm for focus (i.e. on the basis of the image to determine in which direction you move the focus): it turned out that in fact the task is quite complicated. Expanding the image by Haar wavelets, it is possible, on the basis of the ratio of the amplitudes of the HH, HL+LH and LL component to figure out what the image is of poor quality. However, in what direction was unclear. And on the subject — in some samples was a big problem with this algorithm (in the picture with lots of clear boundaries it is possible to determine the "quality" of the image, but the gradient on pictures — figvam). - arielle_OReilly commented on October 8th 19 at 01:46
October 8th 19 at 01:45
In the exif of the file sometimes there's a Quality field, but the values are there such as Fine, Average — not a lot...
This refers to Jpeg - arielle_OReilly commented on October 8th 19 at 01:48
Still it is possible as an indirect sign to use the histogram - Allene_Crona78 commented on October 8th 19 at 01:51

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