Image Preparation
Map an Image Between Two Chosen Colours
Duotone uses the light and dark structure of a picture to create a controlled two colour treatment. It is more predictable than…
Category: Image Preparation
Image Preparation
Invert RGB Colours and Review the Result’s Purpose
Colour inversion replaces each channel with its opposite value. It can help create an effect or inspect a dark asset, but it…
Image Preparation
Create a Warm Sepia Version Without Recolouring Objects
Sepia gives an image a warm tonal treatment. It is useful as a visual style, but it does not selectively replace the…
Image Preparation
Convert Colour to Grayscale Without Losing the Canvas
A grayscale version can be useful for a document, a restrained website asset or a comparison where colour is distracting. It replaces…
Image Preparation
Reduce Image Opacity and Keep the Alpha Channel
Opacity describes how much of an image is visible when it is placed over a background. Changing opacity can help create an…
Image Preparation
Turn an Image Into Black and White by Luminance
Thresholding is different from grayscale. A grayscale picture has many shades between black and white. A threshold result assigns each visible pixel…
Image Preparation
Apply Pixelation as an Effect, Not Guaranteed Redaction
Pixelation replaces local detail with blocks of averaged colour. It can create a mosaic style or make a background less detailed. Its…
Image Preparation
Sharpen Edges Without Claiming New Resolution
A slightly soft image can look crisper when neighbouring pixel differences are emphasised. Sharpening changes that edge contrast. It does not turn…
Image Preparation
Blur an Image With a Controlled Number of Passes
Blur softens local detail by mixing nearby pixels. It can reduce visual distraction or create a background effect, but it is not…
Image Preparation
Increase Contrast Without Crushing the Image
Contrast changes the separation between lighter and darker values. It can make a flat image feel clearer, but too much can remove…