An Image has been divided into small blocks of desired block sizes. Depending on the requirement
1. Some Blocks are filtered with say filter 'a'
2. Some with filter 'b'
3. Some are unaltered
Now how to generate the final Image with these new blocks with less visible difference between different blocks?
Please provide any documents that can help me.
https://www.researchgate.net/publication/259579469_Image_processing_tools_for_Morphologic_transformation_and_functions_on_MATLAB
https://www.researchgate.net/publication/259569213_Order_Statistical_Flter_Analysing_with_MATLAB?ev=prf_pub
These articles may help you . Article's language is Turkish
but I think you can understand somethings from my codes.
Data Image processing tools for Morphologic transformation and fu...
Chapter Order Statistical Fılter Analysing with MATLAB
Good question for research! I think the key to your problem is to introduce a change-over (transition) zone between blocks A and B; A and natural, B and natural. The only problem is how to effect this transition gracefully! The algorithms used in the 3 cases may in general be different.
The simplest solution might be to segue from one filter to the next using a sigmoid function to control the degree of the inputs appearing in the output. You might even be able to get away with using a linear ramp function to define the output if speed is important. You might be able to avoid using an algorithm, and get away with using a pre-computed matrix that is a mathematical mix of filter A and filter B etc.
Possible directions for literature searches include: averaging, texture interpolation, blending, rendering, convolution, fractals
Starting references include:
Minami, S., Zakhor, A. An optimization approach for removing blocking effects in transform coding Circuits and Systems for Video Technology, IEEE Transactions on. (Vol:5 , Iss: 2 )
Guillemaut, J.-Y. Kilner, J. ; Starck, J. ; Hilton, A. Dynamic feathering: Minimising blending artefacts in view-dependent rendering. Visual Media Production, 2007. IETCVMP. 4th European Conference on.
All these references should help you to open up your reading list.
Have not tried this but just a suggestion. How about taking overlapping blocks and then apply appropriate fusion technique on the overlapping region only, that way you will get good mix of both the filter outputs which might make transition look natural.
Regards...
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