https://github.com/andrewgazelka/cpp-image-process

An image processing library for UMN computer graphics
https://github.com/andrewgazelka/cpp-image-process

cpp17 image-processing

Last synced: about 1 year ago
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An image processing library for UMN computer graphics

• Host: GitHub
• URL: https://github.com/andrewgazelka/cpp-image-process
• Owner: andrewgazelka
• Created: 2021-02-27T03:30:37.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2021-04-13T16:58:49.000Z (about 5 years ago)
• Last Synced: 2025-04-06T04:03:03.749Z (about 1 year ago)
• Topics: cpp17, image-processing
• Language: C++
• Homepage:
• Size: 11.8 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Image Processing Library

_For CSCI 5607 Project 2_

## Commands

Where `jf.jpg` is the jelly fish image

![Jellyfish](.github/JellyFish.jpg)

|Category|Command|Image|

|---|---|---|

|**Noise**|`image -input jf.jpg -noise 0.1 -output img.jpg` | ![Jellyfish noise](.github/noise0.1.jpg) |

||`image -input jf.jpg -noise 0.5 -output img.jpg` | ![Jellyfish noise](.github/noise0.5.jpg) |

|**Brightness**|`image -input jf.jpg -brightness 0.5 -output img.jpg` | ![Jellyfish dark](.github/bright0.5.jpg) |

||`image -input jf.jpg -brightness 2 -output img.jpg` | ![Jellyfish light](.github/bright2.jpg) |

|**Contrast**|`image -input jf.jpg -contrast 0.5 -output img.jpg` | ![Jellyfish light](.github/contrast0.5.jpg) |

||`image -input jf.jpg -contrast 1.5 -output img.jpg` | ![Jellyfish light](.github/contrast1.5.jpg) | 

|**Saturation**|`image -input jf.jpg -saturation 0.2 -output img.jpg` | ![Jellyfish light](.github/sat0.2.jpg) |

||`image -input jf.jpg -saturation 0.8 -output img.jpg` | ![Jellyfish light](.github/sat0.8.jpg) |

|**Crop**|`image -input jf.jpg -crop 600 300 100 200  -output img.jpg` | ![Jellyfish cropped](.github/crop.jpg) |

|**Extract Channel**|`image -input jf.jpg -extractChannel 0 -output img.jpg` | ![Jellyfish red](.github/ec0.jpg) |

|**Quantize**|`image -input jf.jpg -quantize 2 -output img.jpg` | ![Jellyfish red](.github/q2.jpg) |

|**Random Dither**|`image -input jf.jpg -randomDither 2 -output img.jpg` | ![Jellyfish red](.github/rd2.jpg) |

|**Blur**|`image -input jf.jpg -blur 2 -output img.jpg` | ![Jellyfish red](.github/bl2.jpg) |

|**Sharpen**|`image -input jf.jpg -sharpen 2 -output img.jpg` | ![Jellyfish red](.github/s2.jpg) |

|**Edge Detect**|`image -input jf.jpg -edgeDetect -output img.jpg` | ![Jellyfish red](.github/ed.jpg) |

|**Floyd-Steinberg Dither**|`image -input jf.jpg -FloydSteinbergDither 2 -output img.jpg` | ![Jellyfish red](.github/fs.jpg) |

|**Scale**|`image -input jf.jpg -scale 1.5 2.3 -output img.jpg` | ![Jellyfish red](.github/scale.jpg) |

|**Rotate**|`image -input jf.jpg -rotate 45 -output img.jpg` | ![Jellyfish red](.github/rot.jpg) |

# Scaling Methods

We will compare rotation for 45 degrees

|Number|Category|Image|

|--|--|--|

0|Point|![rot0](.github/rot0.jpg)|

1|Bilinear|![rot0](.github/rot1.jpg)|

2|Gaussian|![rot0](.github/rot2.jpg)|

# Experiences

This project was very interesting. However, I still had to go through a lot of work to get everything working.

Part of this was because of my love for abstraction. I tried to subtract pixels by pixels, but I forgot about 

bounds already built into the system (for example pixels are limited to not have negative values).

Many of the issues lead to very interesting computer art. I overall really enjoyed this project.