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akashmehra/imagefilters
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1) COMPILATION:
Compiling C++ binaries:
If you don't have cmake installed then compile by issuing the following
command:
g++ -o pimg processImage.cpp -O3 -L/usr/X11R6/lib -lm -lpthread -lX11
-DGCC_COMPILATION
else:
for building out of source:
In Release mode:
mkdir -p build/release
cd build/release
cmake -DCMAKE_BUILD_TYPE=Release ../../
make
In Debug mode:
mkdir -p build/debug
cd build/debug
cmake ../../
make
For using Xcode:
cmake -GXcode ../../
Compiling the cuda binaries:
To run the cuda code:
nvcc -o gimage gpuProcessImage.cu -L/usr/X11R6/lib -lm -lpthread -lX11
2) EXECUTION:
executablename -filter filterType [blendValue|convolutionkerneltype] [convolutionkernelsize] directorypath.
filterType: (these are all integers)
BRIGHTNESS : 0
CONTRAST : 1
CONVOLUTION : 2
BLEND : 3
SATURATION : 4
SEPIA : 5
BLACKWHITE : 6
BRIGHTNESS_CONTRAST : 7
BLACKWHITE_BRIGHTNESS : 8
BRIGHTNESS_SATURATION : 9
CONTRAST_SEPIA : 10
blendValue: 0-21, convolutionkerneltype 0-5
convolutionkernelsize: 3, we can change it to support 5, 7 etc. as well.
directory where images are stored, output will be stored in the same directory under output directory: directoryPath/output/
Brightness:
./gimage -filter 0 ../images/input
Contrast:
./gimage -filter 1 ../images/input
Saturation:
./gimage -filter 4 ../images/input
Sepia:
./gimage -filter 5 ../images/input
Convolution:
./gimage -filter 2 0 3 ../images/input
./gimage -filter 2 1 3 ../images/input
./gimage -filter 2 2 3 ../images/input
./gimage -filter 2 3 3 ../images/input
./gimage -filter 2 4 3 ../images/input
GAUSSIAN : 0
EMBOSSED : 1
MOTIONBLUR : 2
SHARPEN : 3
EDGEDETECTION : 4
EDGEENHANCE : 5
For a detail description of convolution filters please refer to a section on convolution in report.
Blend:
./gimage -filter 3 0 ../images/input
BLEND_FILTER_NORMAL : 0
BLEND_FILTER_LIGHTEN : 1
BLEND_FILTER_DARKEN : 2
BLEND_FILTER_MULTIPLY : 3
BLEND_FILTER_AVERAGE : 4
BLEND_FILTER_ADD : 5
BLEND_FILTER_SUBTRACT : 6
BLEND_FILTER_DIFFERENCE : 7
BLEND_FILTER_NEGATION : 8
BLEND_FILTER_SCREEN : 9
BLEND_FILTER_EXCLUSION : 10
BLEND_FILTER_OVERLAY : 11
BLEND_FILTER_SOFTLIGHT : 12
BLEND_FILTER_HARDLIGHT : 13
BLEND_FILTER_COLORDODGE : 14
BLEND_FILTER_COLORBURN : 15
BLEND_FILTER_LINEARDODGE : 16
BLEND_FILTER_LINEARBURN : 17
BLEND_FILTER_LINEARLIGHT : 18
BLEND_FILTER_VIVIDLIGHT : 19
BLEND_FILTER_PINLIGHT : 20
BLEND_FILTER_HARDMIX : 21
We can issue upto 21 for Blend for blend modes. For detail description of blend modes please refer to a section on Blend modes in report.
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Image Processing Filters using GPU (CUDA programming model)
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