Image Processing Operations: Grayscale Conversion, Rotation, Sharpening, and Geometric Drawing

This program provides comprehensive image processing capabilities including grayscale conversion, rotation, sharpening, and drawing geometric shapes (circles, ellipses, lines) on images. Users can execute specific operations by entering correctly formatted parameter expressions in the input field. Key implementation details involve using RGB-to-grayscale conversion algorithms, affine transformation matrices for rotation, and convolution filters for sharpening. Example expressions with technical explanations: Line drawing: x1=20,y1=15,x2=150,y2=100 (uses Bresenham's line algorithm for pixel connection) Circle: x=100,y=100,r=20 (implements midpoint circle algorithm for smooth circumference) Ellipse: x=100,y=100,a=16,b=9 (employs parametric equations for elliptical shape rendering) Rotation: angle=30(degrees),ax=100,ay=90 (performs affine transformation around anchor point (ax,ay)) Sharpening: factor=80 (applies unsharp masking with adjustable intensity parameter) The program utilizes matrix operations for geometric transformations and kernel-based convolution for image enhancement. Grayscale conversion follows the luminance method (0.299R + 0.587G + 0.114B), while rotation operations use interpolation for smooth results. Users can efficiently process images by inputting these parameterized expressions, making it suitable for both basic editing and technical image analysis applications. The interface allows precise control over transformation parameters and drawing coordinates for professional-grade results.