About this project
Illustrations
Requirements
Build

The goal of this project is to use CUDA with Qt. There are some imaging functions :

• Absolute difference between two images
• Gaussian blur
• Difference of Gaussian (absolute difference between an image blured N times and the same image blur N + 1 times).
• Pyramide of Difference of Gaussian (Differences of Gaussian of an image, with different N and different scales).
• SIFT descriptors (not working properly yet, it uses all the previous functions).

-Original image :

-Gaussian blur (multiple passes):

-Difference of Gaussian:

• Qt
• CUDA or CUDA 9.0 RC

You will need to build CUDA sources before building the Qt project and link the resulting lib to the project :

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../Imaging-functions-CUDA/x64/Release -lImaging-functions-CUDA
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../Imaging-functions-CUDA/x64/Release -lImaging-functions-CUDA

INCLUDEPATH += $$PWD/../Imaging-functions-CUDA/x64/Release \
            "D:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0\include"
DEPENDPATH += $$PWD/../Imaging-functions-CUDA/x64/Release

To build CUDA sources, I used Visual Studio (2017, with NVIDIA Nsight from CUDA 9.0).