malaknasser812/image-mixer

Fourier-Image-Mixer

Description:

This desktop program demonstrates the relative importance of magnitude and phase components in a signal by manipulating Fourier transforms of grayscale images. Users can view and manipulate four grayscale images simultaneously, observe their Fourier transform components, and mix them to create new images.

Features:

Image Viewers:

• Open and view up to four grayscale images.
• Automatic conversion to grayscale for colored images.
• Unified sizes for opened images.
• View Fourier transform (FT) components: Magnitude, Phase, Real, and Imaginary.
• Change images by double-clicking on viewer.

Choose Mixing Mode:

• Choose between Mag and phase or Real and Imaginary modes.

Output Ports:

• View mixer result in one of two output viewports.
• Control which viewport displays the mixer result.

Brightness/Contrast:

• Adjust brightness/contrast of images via mouse dragging.
• Apply adjustments to any of the four components.

Components Mixer:

• Mixer result is the inverse Fourier transform (ifft) of a weighted average of input images' FTs.
• Customize weights of each image's FT via sliders.
• Intuitive interface for customizing weights for two components.

Regions Mixer:

• Select regions (inner or outer) for each FT component.
• Choose regions using drawn rectangles with customizable sizes.
• Highlight selected regions for visual representation.

Realtime Mixing:

• Display progress bar during lengthy ifft operations.
• Cancel previous operation when new request is made.

Screenshots:

Main Ui:

Adjust Contrast and Brightness:

Mixing 2 imgs mode1 (mag&phase) in output port 1:

Mixing 2 imgs mode2 (real&imaginary) in output port 2:

Mixing small regions(at center) of 4 imgs mode1 (mag&phase) using inner region in output port 1:

Mixing small regions (at center) of 4 imgs mode1 (mag&phase) using outer region in output port 1:

Mixing large regions (at center) of 4 imgs mode1 (mag&phase) using outer region in output port 1:

Mixing large regions (at center) of 4 imgs mode1 (mag&phase) using inner region in output port 1:

Installation:

1. Clone this repository to your local machine.
2. Install the required dependencies by running pip install -r requirements.txt in your terminal or command prompt.
3. Navigate to the project directory containing main.py.

Running the Program:

• Run the program by executing python main.py in your terminal or command prompt.
• The application window will open, displaying the main user interface.

Loading Images:

• Double Click on the Image viewport to load up to four grayscale images.
• If you load a colored image, the program will automatically convert it to grayscale.
• Images will be displayed in separate viewports within the application window.

Adjusting Brightness/Contrast:

• Drag the mouse up or down to adjust the brightness of an image.
• Drag the mouse left or right to adjust the contrast of an image.
• You can adjust the brightness/contrast for each image individually.

Viewing Fourier Transform Components:

• Select an image viewport.
• Choose the Fourier transform component you want to view (Magnitude, Phase, Real, or Imaginary) from the drop-down menu.
• The selected Fourier transform component will be displayed in the corresponding viewport.

Customizing Mixing Settings:

• Choose the mixing mode (Mag and phase or Real and Imaginary) from the mode selection buttons.
• Use the sliders to customize the weights for each image's Fourier transform components.
• Adjust the weights to create the desired mixer result.

Selecting Regions for Mixing:

• Click and drag to draw rectangles on the Fourier transform components.
• Choose whether to include the inner or outer region of each rectangle for mixing.
• Adjust the size of the region rectangles using the slider or resize handles.

Viewing Mixer Result:

• Choose one of the two output viewports to display the mixer result.
• The mixer result will be displayed in real-time as you adjust the mixing settings.

Realtime Mixing:

• During lengthy mixer operations, a progress bar will be displayed to indicate the progress of the operation.
• You can cancel the ongoing operation and start a new one by making new requests.

By following these instructions, you can effectively use the Fourier-Image-Mixer application to manipulate Fourier transforms of grayscale images and observe the effects of different mixing settings on the resulting images.

Technologies Used:

• Python
• PyQt5 for GUI
• NumPy for mathematical operations
• OpenCV for image processing