I will use ubuntu for example below. To teach how to compile a ver that can use H254.

• If you want to compile it by yourself：

  • Install compile tool and module you need

    sudo apt install build-essential cmake git pkg-config libgtk-3-dev \
        libavcodec-dev libavformat-dev libswscale-dev libv4l-dev \
        libxvidcore-dev libx264-dev libjpeg-dev libpng-dev libtiff-dev \
        gfortran openexr libatlas-base-dev python3-dev python3-numpy \
        libtbb2 libtbb-dev libopenexr-dev \
        libgstreamer-plugins-base1.0-dev libgstreamer1.0-dev
    

  • git clone opencv and opencv contrib

    mkdir ~/opencv_build && cd ~/opencv_build
    git clone https://github.com/opencv/opencv.git
    git clone https://github.com/opencv/opencv_contrib.git

  • CMake set OpenCV construct

    cmake -D CMAKE_BUILD_TYPE=RELEASE \
        -D CMAKE_INSTALL_PREFIX=/usr/local \
        -D INSTALL_C_EXAMPLES=ON \
        -D INSTALL_PYTHON_EXAMPLES=ON \
        -D OPENCV_GENERATE_PKGCONFIG=ON \
        -D OPENCV_EXTRA_MODULES_PATH=~/opencv_build/opencv_contrib/modules \
        -D BUILD_EXAMPLES=ON ..

  • If you success it will show the message below

    -- Configuring done
    -- Generating done
    -- Build files have been written to: /home/vagrant/opencv_build/opencv/build

  • Compile(-j for speeding compiling. number after j is your cpu core)

    make -j4

  • Installing the module you compiled

    sudo make install

  • Check version

    pkg-config --modversion opencv4
    

  • Or using python Import to check version

    python3 -c "import cv2; print(cv2.__version__)"

Support image and gif to generate QR code.

You can click the image below to watch the video.

• Released exe
• Feature
  • Color num
  • Pixel size
  • Smoothing
  • Outline
  • Dithering

• Add Chinese text
• Add compression
• Feature
  • Add Saturation
  • Add Contrast
  • Add brightness

• Add more option of color nums, contrast and saturation values

• Add maker name

• Add page system
• Add mode switch
• Add custom mode -> can edit value you want

• Improved dithering effect. Removed noise points.

• Add gif module.
• If file is gif it will be gif mode. It will automatic save as gif when transform is done.
• Now supported gif.

• Working on Video module -> can edit mp4 and avi with experiment module.
  • flv file save has some bug.
  • This module will eat most of your cpu. So i will wrapped it as another tool.
• Found bug can't save as chinese character name file.
• video module

• GIF

  • Fixed gif duration error.

  • now can support ".gif " and " .GIF "

• Video

  • Try to add video module in pixel art filter.
  • It's an experimental area. Use it wisely and trust your computer.
  • Now can transform video but there are some rules and thing you should know:
    • If it start it won't stop and cannot pause so you need to use it wisely.
    • It will take more time and ate almost your cpu when you use setting that are complex.
    • If it done video cover will display on window. And it will automatically save at the folder you put the exe.
    • Edited video will lost sound and become ultimately large. So be careful.
  • I add cmd for process hint. It will be there until I removed video edit part.

• Add save success hint
• Found gif convert bug. Fixed.
• Add tqdm as process bar in cmd.
  • Add process bar on both gif and video part in cmd.
• Add video rendering window.
  • You can press 'Q' to stop rendering video now

• Windows size will limit in a scope. -> it will be limited in 800 X 600

• Add gif rendering display window
• can stop render while rendering gif by pressing 'Q'

• Add mouse control:
  • Use scroll up to scale up
  • Use scroll down to scale down
  • Use mouse mid button to make image back to original pos and scale rate
  • Can drag image now by left click and moving mouse
• Add dict to save sets to make code more flexible.

• Improved scaled image resolution
• Can import and save sets. But mode should be same as saved set.

You can click pic to watch vid.

• Create Web version
• Now can edit it on web

• Added Gif web edit feature

• Added H264 to video edit to make web browser can play video successfully

• Now can remember last file you select.
• Now can alert wrong file format.

• Add contrast edit.
• Add saturation edit.

• Add English and Traditional Chinese can select from right upper corner.
• Page will remember what last language you choose.

• Add uploaded file preview. It can show you file name, file size and display preview.
• 

• Now page will remember your settings.
• Add server side value detect to protect server cpu.
• Add multi language support.
• If you hover mouse cursor on the options it will pop hint bubble.

• Add hash tool to keep same image waste space.
• more detailed can see this github repo.

• working on twitter api
• Now can add content and generate qrcode image.
• 

• Now can auto tweet.
• 
• 

• Fixed gif and video recycle using method
• Now support webp file

• Add gallery page. It will collect #PixelArtFilterWeb post from twitter and add into it.

• Max size is 4MB now!

• [ ] Custom Mode
• [ ] kuwahara filter(Oil painting style)
• [ ] Dark mode
• [ ] Add Download button
• [ ] Need new dither method(more fast more efficien and more perfect)
• [ ] Loading GIF
• [ ] Image Matting

2022/11/16

• [X] Same image recycle

2022/11/20

• [X] Add hash detect

2022/11/23

• [X] Remember set
• [X] Multi language support
• [X] Mouse hover hint

2022/11/25

• [X] QR code feature

2022/11/26

• [X] Add twitter api to auto post

2022/11/30

• [X] gallery from twitter hashtag