kornia/kornia-rs

Adding Support for Bicubic Interpolation

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#477 opened on Sep 7, 2025

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good first issuehelp wanted

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Description

I wish to extend the InterpolationMode to support bicubic interpolation.

The following computation will be used.

I have to make a new file in src/interpolation/. Will take help from existing functions.

Reference: https://en.wikipedia.org/wiki/Bicubic_interpolation Purpose: Very common algorithm for interpolation apart from bilinear and nearest neighbour, which is already implemented.

Is this good to work?

Contributor guide

Research direction
Study the existing interpolation functions (e.g., bilinear, nearest) in src/interpolation/ and implement bicubic interpolation using the provided formula. Create a new file bicubic.rs and integrate it with the InterpolationMode enum.
Tech stack
rust
Domain
computer vision
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70