A tool to perform several imaging tasks.

Features

• Read, Write all formats supported by ITK
• Read, Write The HSV-value channel of color image formats supported by OpenCV
• Control filters for 3D images via a graphical user interface
• Modules:
• Image View, Slice Control
• Statistics
• Line Profile Plot
• Histogram based on Kernel Density Estimation
• Binary Image Operations (Add, Subtract, Divide, Multiply)
• Unary Image Operations (Invert, Binarize, DCT, iDCT, log, exp)
• (Hard) Thresholding
• Morphological Filter (Binary Dilate)
• 3x3x3 Convolution
• Rescale Intensities
• Shrink
• Extract
• Resize (Nearest Neighbour, Linear, Sinc, BSpline - Interpolation)
• Non-Local Gradient
• Region Growing Segmentation
• Bilateral Filter
• TGV Denoising
• Unsharp Masking
• Multiscale Retinex
• DCT Poisson Solver
• TGV-DCT Image Shading Correction

Screenshot

In this screenshot you can see the ambient_image_processor application. The TGV-DCT image shading correction module takes the input image on the left side. In this case the input is an artificial piecewise constant image with a simulated additive bias. In the line profile plot on the right side the estimated bias corrected image contains perfect straight lines.

Dependencies

• Qt 5.7.0 (Qt5Core, Qt5Widgets, Qt5Charts), installed from source, qt.io
• Cuda 8.0, package cuda-8-0
• ITK 4.8.1, installed from source, itk.org
• OpenCV 3.1.0, installed from source, opencv.org
• SQLite 3, package libsqlite3-dev

Build

mkdir build
cd build
cmake ..
make

The generated binaries are located in the build/output directory.

Run

build/output/tgv2_deshade_application

calling the binaries with invalid parameters usually shows a help text containing a list of the possible parameters. Batch processing can be done by using the

• bash script bash/tgvk_deshade_downsampled_batch.sh
• ruby scripts in the folder ruby
• octave/matlab script octave/tgv2_deshade.m

the gui is executed by running

build/output/ambient_application

Future work/ideas

• easier disabling/enabling of modules
• module template, creator script
• add more imaging filters
• module ideas
• image zoom for view only
• load volume of multiple single files using the itk dicom reader, sustain meta info
• load/scan all files of an directory, use dicom reader, group by date, serie, listview, load-button, do not load all data - only the file-paths for each volume, sustain meta info
• feedback/folk of a brave windows user