Method for processing an image to be processed

The method addresses the challenges of enhancing image contrast with reduced resource consumption by employing hexagonal mesh decimation and interpolation, achieving efficient image processing with minimal artifacts.

WO2026115224A1PCT designated stage Publication Date: 2026-06-04SAFRAN ELECTRONICS & DEFENSE (FR)
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SAFRAN ELECTRONICS & DEFENSE (FR)
Filing Date
2025-11-24
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing image processing methods face challenges in efficiently enhancing contrast while minimizing memory and computing resource consumption, often leading to visual artifacts and high computational load.

Method used

A method involving local low-frequency filtering of images using hexagonal mesh decimation and interpolation to create an imagelet, followed by interpolation to the original size, reducing resource consumption and minimizing artifacts.

Benefits of technology

This approach effectively enhances contrast with reduced memory and computing requirements, minimizing interpolation-related artifacts and facilitating use in embedded systems.

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Abstract

One aspect of the invention relates to a method (100) for processing an image to be processed (1), comprising carrying out low-frequency local filtering of the image to be processed (1), the image to be processed (1) comprising an initial set of N pixels, the low-frequency local filtering of the image to be processed (1) comprising: - decimating (110) the image to be processed (1) into at least one decimated image (2), and - interpolating (120) the at least one decimated image (2) into at least one interpolated image (3), each interpolated image (3) comprising a first generated set of N pixels, an interpolated value of each pixel of the first generated set of N pixels being calculated from the low-frequency processing value of at least two pixels adjacent to each pixel of the at least one decimated image which belong to the pixels of the subset of M pixels.
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