Beyond the Fundamentals

Advanced Compositing & Retouching

Chapter 1 · Beyond the Fundamentals

Raster Editing Fundamentals taught raster editing as a discipline — selections, layers, masks, adjustment layers, the clone/heal tools, basic filters, and exporting for the right destination — with Photoshop and GIMP shown side by side throughout as two independently-built implementations of the same underlying ideas. This course assumes all of that is comfortable working knowledge already, and goes further into the techniques a working professional actually reaches for once the basics stop being the hard part.

A Quick Recap of What Raster Editing Fundamentals Covered

Before going further, it's worth being precise about the floor this course is building on:

Selections — the foundation of nearly every other operation (Chapter 3)
Layers — non-destructive stacking instead of overwriting pixels (Chapter 4)
Layer masks — non-destructive hiding, not deleting (Chapter 5)
Adjustment layers & color correction (Chapter 6)
The Clone Stamp & healing tools for basic retouching (Chapter 7)
Basic filters & effects (Chapter 8)
Exporting & file formats for the right destination (Chapter 9)

If any of that feels shaky rather than second nature, it's worth revisiting those chapters directly before continuing — this course builds on each of them without re-teaching them.

What This Course Adds

Nine chapters follow this one, each pushing one of those fundamentals into genuinely advanced territory:

Advanced masking — channel-based selection for fine detail like hair, well beyond a basic layer mask (Chapter 2)
Compositing multiple images seamlessly — matching color, lighting, and perspective across sources (Chapter 3)
Smart Objects & non-destructive filters — and a real, concrete gap between the two tools here (Chapter 4)
Frequency separation — a genuine professional retouching technique, separating texture from tone (Chapter 5)
Automating repetitive work — Actions and Script-Fu, two genuinely different scripting paradigms (Chapter 6)
Batch processing — running one operation across hundreds of files unattended (Chapter 7)
Advanced filters & effect stacking (Chapter 8)
Plugins & extensions — including a real, practical cost difference between the two tools (Chapter 9)
Capstone — every technique above combined into one production-style batch-retouching workflow (Chapter 10)

Raster Editing Fundamentals	Advanced Compositing & Retouching
One selection at a time, by hand	Channel-based selection for fine, hard-to-select detail
Editing a single image	Compositing several images into one believable scene
Adjustment layers, applied manually per image	Smart Objects & non-destructive filters, editable after the fact
Clone Stamp / Healing Brush, by eye	Frequency separation — texture and tone edited independently
Every edit performed by hand	Actions / Script-Fu automating repeated steps
One file at a time	Hundreds of files, unattended

Why this split exists in real studios, not just in this course

Professional retouching workflows genuinely separate "basic" work — a quick crop, a levels adjustment, a blemish removed — from "advanced" work like frequency separation or a fifty-image product-photo batch, because the second category has a real time cost that only pays off once it's automated or applied at scale. This course's own split between Fundamentals and Advanced isn't an arbitrary curriculum device — it mirrors how the work actually gets divided in practice.

What this course deliberately does not cover

Two things are out of scope on purpose, not by oversight. First, AI-generative editing — Photoshop's Generative Fill/Expand and Adobe Firefly integration, or GIMP's own much younger AI-plugin ecosystem — is a fast-moving space evolving independently of the manual compositing/retouching discipline this course teaches, and deserves its own separate treatment rather than a rushed mention here. Second, print-production concerns — CMYK color separation, prepress proofing, bleed and trim setup — belong to a print-specific workflow this course doesn't attempt to cover. Both are genuine gaps, named honestly rather than glossed over.

Who This Course Is For

Anyone comfortable with Raster Editing Fundamentals' own ten chapters — whether completed through this site or through equivalent working experience in Photoshop or GIMP. No new software installation is needed beyond what Raster Editing Fundamentals already assumed; every technique here uses tools already present in both applications, just applied with more depth and intention.

Hands-On Exercises

Exercise 1

A colleague who finished Raster Editing Fundamentals asks why frequency separation and batch processing weren't just taught as two more chapters of that course, instead of splitting them into a separate "Advanced" course. Using this chapter's own tip box, explain the reasoning.

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Exercise 2

List three techniques from Raster Editing Fundamentals that this course assumes are already comfortable, and match each to the specific chapter of this course that builds directly on top of it.

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Exercise 3

A client asks whether this course will teach them to use Photoshop's Generative Fill to remove a person from a photo. Using this chapter's own warning box, explain why that request falls outside this course's scope, and what it does cover instead for removing unwanted elements from a photo.

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Chapter 1 Quick Reference

This course assumes Raster Editing Fundamentals' ten chapters (selections, layers, masks, adjustment layers, clone/heal, filters, export) as comfortable working knowledge
Nine chapters follow: advanced masking, compositing, Smart Objects/non-destructive filters, frequency separation, automation (Actions/Script-Fu), batch processing, filter stacking, plugins, and a capstone
The Fundamentals/Advanced split mirrors a real distinction in professional workflows, not just a curriculum device
Out of scope, on purpose: AI-generative editing (Generative Fill/Expand) and print-production concerns (CMYK, prepress)
No new software is required beyond what Raster Editing Fundamentals already assumed