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https://github.com/npazosmendez/gpu-filters

Image-processing filters implemented on GPU with OpenCL
https://github.com/npazosmendez/gpu-filters

c image-processing opencl

Last synced: 2 months ago
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Image-processing filters implemented on GPU with OpenCL

Host: GitHub
URL: https://github.com/npazosmendez/gpu-filters
Owner: npazosmendez
License: mit
Created: 2018-01-27T21:32:48.000Z (almost 7 years ago)
Default Branch: master
Last Pushed: 2022-06-07T16:40:22.000Z (over 2 years ago)
Last Synced: 2024-04-15T22:53:25.369Z (10 months ago)
Topics: c, image-processing, opencl
Language: C++
Homepage:
Size: 40.5 MB
Stars: 11
Watchers: 3
Forks: 3
Open Issues: 0
Metadata Files:
- Readme: readme.md
- License: LICENSE.txt

Awesome Lists containing this project

README

# GPU Filters

Four image processing filters implemented in pure C and in OpenCL to compare their performances.

**Edge Detection** with Canny's algorithm

Raw | Processed
:-------------------------:|:-------------------------:
![](readme/canny_raw.png) | ![](readme/canny.png)

**Line Detection** with Hough's transform

Raw | Processed
:-------------------------:|:-------------------------:
![](readme/hough_raw.png) | ![](readme/hough.png)

**Dense Optical Flow** with Lucas-Kanade

Raw | Processed
:-------------------------:|:-------------------------:
![](readme/kanade_raw.gif) | ![](readme/kanade.gif)

**Region Filling** via exemplar-based image inpainting

Raw | Processed
:-------------------------:|:-------------------------:
![](readme/inpainting_raw.png) | ![](readme/inpainting.png)

# Dependencies
* ### OpenCL 1.2 with C++ bindings

drawing

Filters are implemented using OpenCL 1.2. To download needed headers and libraries (linux) for compilation run:

```shell
sudo apt install ocl-icd-libopencl1
sudo apt install opencl-headers
sudo apt install clinfo
```

We've also used the C++ bindings, which are included in the repo.

A device that supports OpenCL is needed to run the program. Drivers installation varies. These are some devices in which the program ran and how to install their drivers:

**NVIDIA GeForce 940m**

```shell
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-355 nvidia-prime
sudo reboot
```

* ### OpenCV 2

drawing

For camera input only. **Central algorithms are not implemented using this library.**

To get eveything needed to compile run:

```shell
sudo apt-get install libopencv-dev
```
drawing

* ### Qt 4.8
For an advanced GUI only, not actually needed to run the bascis. More information at `gui/readme.md`