QTransform

A Simple app written with C++ and QT6, with straighforward UI, Just Drag & Drop your image and choose your desired tranformation.

Supported Transformtions:

• Black & White Transformer
• Image Invert
• GrayScale Transformer

Supported File Formats:

• PNG
• JPEG
• BMP

Demo:

demo1_compressed.mp4

How To Use ?

1. Download "Windows.7z" from the Releases Sections.
2. Decompress it.
3. Run "QTransform.exe"
4. Drag and Drop your image and you are good to go.

How To Build ?

• Prequisties: QT6, CMake, MinGW-64.

1. Download QT6: https://www.qt.io/download-dev
2. CMake: https://cmake.org/download/
3. MinGW-64: https://github.com/skeeto/w64devkit

After downloading all the requirements, open powershell and run

git clone --depth=1 https://github.com/JustForCollege/QTransform.git
cd QTransform 
mkdir build 
cd build 
cmake .. -G"MinGW Makefiles" -DCMAKE_PREFIX_PATH="C:\Qt\<version>\mingw_64\lib\cmake" -DQT_DIR="C:\Qt\<version>\mingw_64\lib\cmake\Qt6"

How It Works ?

Black & White Transformer:

I simply go through the image pixels, then apply a gray scale transformation on each pixel, then checking to see if the resulting gray value is larger than or equal a specific threshold (I picked 127), I then set that pixel to white, else set it to black. it can be described as follows:

 Load(Image)

 For pixel in Image.Pixels:
	grayedPixel = GrayScale(pixel) 
	if grayedPixel >= 127:
		pixel = WHITE
	else:
		pixel = BLACK 
	
 Save(Image)

GrayScale Transformer:

I have used QT6 QImage::convertToFormat(QImage::Format_Grayscale8) function to do a GrayScale Transformation however the algorithm is quite simple and it can be described as follows:

 Load(Image)
	
 For pixel in Image.Pixels:
	grayedPixel = (pixel.red + pixel.green + pixel.blue) / 3 
	pixel = grayedPixel
	
 Save(Image)

Image Inverter:

I have used QT6 QImage::invertPixels() function to invert the image, however the algorithm for inverting an image is quite simple and it can be described as follows

 Load(Image) 
 
 For pixel in Image.Pixels:
   pixel.red = 255 - pixel.red
   pixel.green = 255 - pixel.green 
   pixel.blue = 255 - pixel.blue 

 Save(Image)