Image Filtering with PIL in Python

This function opens an image at a specified path and applies the corresponding filter based on the type of filter passed in. It then saves the processed image.

Technology Stack : Pillow

Code Type : Image processing

Code Difficulty : Intermediate

                
                    
from PIL import Image, ImageFilter, ImageOps

def apply_filter_to_image(image_path, filter_type):
    # Open the image
    with Image.open(image_path) as img:
        # Apply the selected filter
        if filter_type == 'BLUR':
            filtered_img = img.filter(ImageFilter.BLUR)
        elif filter_type == 'CONTOUR':
            filtered_img = img.filter(ImageFilter.CONTOUR)
        elif filter_type == 'EMBOSS':
            filtered_img = img.filter(ImageFilter.EMBOSS)
        elif filter_type == 'FIND_EDGES':
            filtered_img = img.filter(ImageFilter.FIND_EDGES)
        else:
            raise ValueError("Unsupported filter type")
        
        # Save the filtered image
        filtered_img.save('filtered_' + image_path)