morphological enhancement of images with poor background lightening

Code
....\Block_Approach_Method_1
....\.......................\a1.PNG
....\.......................\a4.PNG
....\.......................\a6.PNG
....\.......................\b1.PNG
....\.......................\Main.m
....\.......................\Thumbs.db
....\Comparison
....\..........\Compare.m
....\..........\Comparison_Chart.doc
....\..........\entropy.m
....\..........\img1.PNG
....\..........\img2.PNG
....\..........\img3.PNG
....\..........\img4.PNG
....\..........\img5.PNG
....\..........\img6.PNG
....\..........\img7.PNG
....\..........\Method_2.m
....\..........\Method_3.m
....\..........\NormalizedEntropy.PNG
....\..........\ssim.m
....\..........\Thumbs.db
....\Dilation_Erosion_Method_2
....\.........................\Boat.bmp
....\.........................\Fig_8.m
....\.........................\FisherMan.bmp
....\.........................\lena256.bmp
....\.........................\lena512.jpg
....\.........................\Method_2.m
....\.........................\Thumbs.db
....\Opening_by_reconstruction_Method_3
....\..................................\Fish.bmp
....\..................................\Lady.bmp
....\..................................\Method_3.m
....\..................................\MultiBackground_Fig.11
....\..................................\......................\Man.bmp
....\..................................\......................\Man.PNG
....\..................................\......................\MultiBackground.m
....\..................................\......................\Thumbs.db
....\..................................\Thumbs.db
....\ssim.m
....\ssim_index.m
....\Thumbs.db

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