ips

ips is a test bed environment to design and test various image processing algorithms.

Prerequisites

Software

• CMake 2.8.0

Visual Studio 2015 Update 3 on Windows or Xcode 7.3.1 on macOS or any compatible compiler and a Make utility on Unix/Unix-like systems including macOS and Linux.

Usage

Create a build directory and set it as a current working directory.

Configure the project to generate IDE or Make files

# on Windows for Visual Studio
cmake .. -G "Visual Studio 14 Win64"

# on MacOS for Xcode
cmake .. -G "Xcode"

# on MacOS or Linux to generate Make files
cmake .. -G "Unix Makefiles"

Build the project

cmake --build .

Run the program from the build/ips/ directory

./ips [path to a png image]

On Windows you can also drag and drop an image file to manipulate into the program's window.

Tasks

Create and parallelize Sobel and Median filters. Use Pthreads and the producer-consumer approach to distribute tasks to workers. The worker threads should form a pool.

• Use the Pthreads API
• All modification should be applied to the ips.c file.
• Start working by parallelizing the brightness and contrast adjustments.

Tasks for Extra Points

• Accelerate the filters by applying the SIMD intrinsic functions of GCC.
• Accelerate the filters even further by writing the Median and Sobel shaders for the program (ask the instructor on how to modify the ips.c file for that).

Credits

ips was created by Dmitrii Toksaitov.