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Developer tools · #gimp
Learn how GIMP’s layer masks let you tweak exposure, contrast, or color on just part of an image without altering the original pixels. Follow a step‑by‑step workflow, see the differences between GIMP 2.10 and 3.0, and avoid common pitfalls.
Layer masks let you hide or reveal parts of a layer without altering pixel data. In this post, we walk through creating, refining, and leveraging masks in GIMP, show a concrete example, discuss performance trade‑offs, and give a quick‑start recipe.
A decision guide for picking 8‑bit, 16‑bit, or 32‑bit float precision in GIMP 2.10+, covering memory, filter support, export options, and a hands‑on validation workflow.
Explore how GIMP uses the GEGL library to implement non-destructive image editing via Directed Acyclic Graphs (DAGs) and memory-efficient tiling.
Learn why GIMP can handle images larger than your memory, how to tune its tile cache, and what trade‑offs to expect when working with 16‑ or 32‑bit per channel projects.
Use a GIMP layer mask instead of the eraser to hide parts of a layer, then verify the original pixels are intact and export the transparency correctly.
Learn how to invoke GIMP without a GUI, run Scheme‑based Script‑fu to scale and export images, and verify each step before scaling to production.
Learn how to apply, reorder, and toggle GIMP 3.0’s GEGL‑based non‑destructive layer filters so you can edit photos reversibly without duplicating pixels.
Decide when to use a layer mask for per‑layer feathering versus a layer group for collective transforms, with a quick comparison table and step‑by‑step validation.