I couldn’t understand when we take the target size more , it becomes less efficient because size of the image becomes too large so it is advisable to take less size, now my question is does target size affects only size or it affects image quality too, because what i m seeing is, it affects both, the picture having 128 x 128 target size is much more clear (high quality) then the one with (32,32) target size.
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Hello @shalinijha219999,
Lets try to understand this with a real life example.
What looks prettier, sharper and clearer, watching a movie in a 15 inch TV or a 55 inch TV, considering both are LED. Obviously, a 55 inch TV.
What is the major difference between a 55 inch TV and a 15 inch TV?
Number of pixels! The more number of pixels, the better quality it is.
Each element of an image array is nothing but a pixel, the more the size of the array, the more pixels, the more clearer, sharper it is.
Hence, yes, it affects both, the computational overhead of the algorithm as well as the quality of the images.
Happy Learning 
Thanks
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