US 2026/0301355 A1 · IMAGE HARMONIZATION

Abstract

In various examples, metadata-based image harmonization for image stitching systems and applications are disclosed. Systems and methods are disclosed that preprocess images with respect to rendering parameters, with the effect of blending those parameters at a border between images to facilitate a smooth rendering when those images are stitched together. An image signal processing (ISP) parameter harmonization function may input metadata parameters associated with a set of images to match and blend one or more of the rendering parameters across an overlapping border between images prior to applying those images to a stitching algorithm. A scaling of the metadata parameter may be performed using a parameter gain function. Pixels in both images located along the border are adjusted to the same boundary metadata parameter value, and smoothed based on the parameter gain function. A discontinuity in rendering parameters is avoided, substantially avoiding corresponding artifacts in the resulting stitched image.

Claims20

Dependent claims

One or more processors comprising one or more processing units to:

determine a first parameter value associated with rendering a first image and a second parameter value associated with rendering a second image, wherein the first image at least partially overlaps at an image border with the second image;
compute a boundary parameter value based at least on the first parameter value and the second parameter value;
apply a first parameter gain function that adjusts the first parameter value in at least a portion of the first image directionally toward the boundary parameter value at the image border;
apply a second parameter gain function that adjusts the second parameter value in at least a portion of the second image directionally toward the boundary parameter value at the image border;
and
stitch the first image to the second image at the image border.

3 more elements

A system comprising:

one or more processing units to:
determine a first parameter value associated with a metadata parameter for a first image of a plurality of images;
compute a first boundary value based at least on the first parameter value and a second parameter value associated with the metadata parameter for a second image of the plurality of images;
compute a second boundary value based at least on the first parameter value and a third parameter value associated with the metadata parameter for a third image of the plurality of images;
apply a first parameter gain function that adjusts the first parameter value in at least a first portion of the first image directionally toward the first boundary value at a first image border of the first image;
and
apply a second parameter gain function that adjusts the first parameter value in at least a second portion of the first image directionally toward the second boundary value at a second image border of the first image.

4 more elements

Dependencies are inferred from the claim text.

Image harmonization

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Image harmonization

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Abstract

Claims20