2023CNN-Based Grayscale-to-Color Image Restoration

Black & White Image Colorizer

A CLI tool that colorizes grayscale photos using pre-trained ECCV16 and SIGGRAPH17 convolutional models, displaying results side by side.

Source

Black & White Image Colorizer screenshot

Colorizing black-and-white photography is a classic computer vision restoration problem. This tool wraps two established pre-trained CNN colorization models — ECCV 2016 and SIGGRAPH 2017 — behind a simple command-line interface.

Given an input image, the script converts it to grayscale, runs it through both pre-trained models, and displays the original, grayscale, and colorized versions side by side for comparison. Each model's output is saved separately as a PNG, making it easy to evaluate colorization quality across approaches.

highlights

Dual-model colorization pipeline using ECCV16 and SIGGRAPH17 pre-trained CNNs
Argparse-driven CLI for flexible, user-defined image inputs
Side-by-side comparison view of original, grayscale, and colorized outputs

built with

Python
OpenCV
Convolutional Neural Networks

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