image_grow: Grow an image by adding padding

In scimesh: Headless Publication-Quality 3D Mesh Rendering Engine

Grow an image by adding padding

Description

Expands the canvas by adding pixel rows/columns filled with a background colour.

Usage

image_grow(image, top, bottom, left, right, background)

Arguments

image	An image list.
top	Number of pixel rows to add above.
bottom	Number of pixel rows to add below.
left	Number of pixel columns to add to the left.
right	Number of pixel columns to add to the right.
background	Numeric vector of length 4 with RGBA values in [0, 1].

Value

A new image list with the expanded dimensions.

Examples

cube <- generate_cuboid(c(0, 0, 0), c(1, 1, 1))
img <- render_mesh(cube$vertices, cube$triangles)
img <- image_grow(img, 10, 10, 20, 20, c(1, 1, 1, 1))

scimesh documentation built on Aug. 9, 2026, 9:07 a.m.