Binary Image Converter

The tool accepts an input image file and computes per-pixel luminance, then applies a binary threshold to yield strictly black or white pixels. Threshold ranges 0–255; default 128. It supports color or grayscale inputs.
Core logic uses standard luminance weighting: Y = 0.2126R + 0.7152G + 0.0722B; if Y >= T, the pixel becomes white, else black. Invert option flips black/white; alpha channels can be preserved where supported to maintain transparency. Outputs are binary, with no gray tones, suitable for high-contrast assets in automation pipelines.
Use cases include logo simplification, symbol rendering for signage, barcode-like graphics, and prepress workflows where deterministic binary images are required. The approach favors deterministic results over smoothing, ensuring consistent appearance across devices and renderers. The tool operates efficiently over large images by streaming data and minimizing memory overhead, making it suitable for batch processing pipelines.