Polar Transform

This function block allows users to apply a polar transformation to an image, converting the linear coordinates of the image into polar coordinates. This transformation can be useful in various image processing and computer vision applications.

📥 Inputs

Image Any The source image to be transformed.

Center_X The X-coordinate of the center point around which the transformation will occur.

Center_Y The Y-coordinate of the center point around which the transformation will occur.

Max Radius The maximum radius that defines the extent of the transformation.

📤 Outputs

Image Any The resulting image after applying the polar transformation.

🕹️ Controls

Center_X A numerical input defining the X-coordinate of the center. If no value is provided, it defaults to the center of the image.

Center_Y A numerical input defining the Y-coordinate of the center. If no value is provided, it defaults to the center of the image.

Max Radius A numerical input defining the maximum radius for the polar transformation. If not set, it defaults to half the width or height of the image.

🎨 Features

Flexible Center Positioning Users can specify the center point for the polar transformation, enabling different visual effects depending on where this point is placed.

Variable Radius The maximum radius for the transformation can be adjusted, giving control over the extent of the polar effect applied.

📝 Usage Instructions

1. Input Image: Connect the image you wish to transform to the Image Any input.

2. Set Center Coordinates: Optionally, specify the Center_X and Center_Y values to determine the center point for the transformation.

3. Define Max Radius: Set the Max Radius to define how much of the image will be transformed.

4. Evaluate Block: Once configured, run the block to see the transformed polar image.

📊 Evaluation

The function block applies the polar transformation to the input image based on the defined parameters, returning the modified image.

💡 Tips and Tricks

Transforming the Center

Experiment with different coordinates for Center_X and Center_Y to achieve various effects. Centering on key features within the image can yield more interesting results.

Using with Other Effects

After applying the polar transform, consider using blocks like Blur or Contrast Optimization to enhance the visual output further.

🛠️ Troubleshooting

No Output Image

If no image is produced as output, check to ensure that a valid image is connected to the Image Any input and that the parameters for Center_X, Center_Y, and Max Radius are set appropriately.

Unexpected Transform Result

If the resulting image appears distorted or unexpected, try adjusting the Center_X, Center_Y, or Max Radius values to see how they affect the transformation.

Ensure the input image dimensions are suitable for the transformation.