Build and run instructions.
Some modifications.
Some modifications.
Some modifications.
Some modifications.
Some modifications.
Some modifications.
Some modifications.
Merge pull request #63 from valentina-kustikova/add_build_run_instructions

Предлагаю взять как есть. У меня есть ряд очень мелких замечаний, но лучше я потом сверху их залью.
regression test wrote
regression test was written
warmify_sample was changed
images added to testdata folder
images added to testdata folder
Merge pull request #66 from VladVin/Warmify_implementation

Regression test for Warmify filter, resolves #62
Merge pull request #65 from VladVin/Vignette_implementation

Regression test for Vignette, resolves #61
Add a regression test
Add images
Merge pull request #67 from KruchDmitriy/Tint_Implementation

Add a regression test for Tint filter, resolve #60
Regression test for sepia filter.