ackermanngue/go-painter

How ackermanngue/go-painter works

go-painter is a CLI that turns a PNG or JPEG into a deterministic, layered brush-stroke painting. The user selects an input, preset, seed, and worker count; the CLI loads the image and invokes the painter, which prepares image structure, places strokes across brush-size passes, renders them onto a canvas, and saves a PNG. The README documents the principal stages and presets. Some implementation files were not sampled, so links for those stages follow documented responsibilities and uncertain internal calls are omitted.

Main entry points: painter.go Painter pipeline · main.go Painter CLI · load.go Image loading · rows.go Row workers

Components 19

CLI workflow

Painter CLI cmd/painter/main.go
Image loading internal/imageutil/load.go
Style presets internal/painter/presets.go
PNG saving internal/imageutil/save.go

Image analysis

Gaussian blur internal/imageutil/blur.go
Grayscale conversion internal/gradient/grayscale.go
Sobel gradients internal/gradient/sobel.go

Stroke painting

Painter pipeline internal/painter/painter.go
Region error internal/painter/error.go
Stroke generation internal/painter/strokes.go
Canvas setup internal/render/canvas.go

Rendering support

Brush rendering internal/render/brush.go
Alpha blending internal/render/blend.go
Color sampling internal/imageutil/color.go
Row workers internal/parallel/rows.go
Image and stroke data internal/model/types.go

Other components

User
Source image
Painting PNG

Connections 20

User → Painter CLI: sets options
Painter CLI → Style presets: selects preset
Painter CLI → Image loading: loads input
Source image → Image loading: image data
Painter CLI → Painter pipeline: paints image
Image loading → Painter pipeline: provides image
Painter pipeline → Gaussian blur: smooths source
Painter pipeline → Grayscale conversion: converts intensity
Painter pipeline → Sobel gradients: computes gradients
Painter pipeline → Region error: measures regions
Painter pipeline → Stroke generation: generates marks
Stroke generation → Color sampling: samples color
Painter pipeline → Canvas setup: initializes canvas
Painter pipeline → Brush rendering: renders strokes
Brush rendering → Alpha blending: blends pixels
Gaussian blur → Row workers: dispatches rows
Grayscale conversion → Row workers: dispatches rows
Sobel gradients → Row workers: dispatches rows
Painter pipeline → PNG saving: saves result
PNG saving → Painting PNG: writes PNG

More Go diagrams: dmarro89/go-dav-os · keisku/gmon · michal-laskowski/wax · phish-report/iok · vianziro/whatsapp-dekstop

Drawn by GitDiagram on September 28, 2026 from the repository's file tree, README and source files. Read as Markdown ·