Photo Editor Unblocked

Purpose & User Intent: This tool provides a browser-based photo editing capability designed for unblocked access in restricted environments. It targets students, freelancers, marketers, and teams needing quick image edits without installing software. Use cases include creating social media visuals, marketing assets, or assignment proofs directly in the browser when local apps are unavailable. Core Logic & Features: The tool implements a client-side image processing pipeline with core edits (crop, rotate, resize, brightness, contrast, saturation, color balance, sharpness) and basic filters. Required features include image import, per-editor adjustments, and export. Optional/advanced features may include batch processing and non-destructive editing in future iterations, while keeping the current workflow lightweight and fast. Inputs & Outputs: Inputs include image_file (required, formats: PNG/JPEG/WebP), crop_rectangle (optional as x, y, width, height in px), rotate_degrees (optional), brightness, contrast, saturation (all optional, range -100 to 100 in percent), output_format (PNG or JPEG), and output_quality (0–100 for JPEG). Outputs comprise edited_image (image/png or image/jpeg) plus a summary of applied edits and resulting dimensions. Algorithms & Calculations: Edits are applied via a client-side canvas-based pipeline. Crop uses pixel coordinates; rotation updates the transform matrix; resizing uses bilinear interpolation; color adjustments apply per-pixel linear transformations in sRGB; export encodes the final canvas to the chosen format. All processing happens in the user’s browser, with no required server interaction. Error & Edge Cases: If the input image is missing or invalid, a structured error code is returned; very large images may trigger memory limitations; cross-origin images require proper permissions; when no edits are selected, the original image can be exported unchanged. Industry/Region & Localization: Units are pixels; color space is sRGB; metadata handling follows standard browser behavior; language and locale can be extended without changing core logic. Assumptions & Exclusions: Assumes modern browsers with Canvas/WebGL support; does not implement advanced layers, non-destructive history, RAW workflows, or server-based processing; no watermarking or brand overlays.