Analysis of beef quality according to color changes using computer vision and white-box machine learning techniques

CN Sánchez, MT Orvañanos-Guerrero… - Heliyon, 2023 - cell.com
The quality of beef products relies on the presence of a cherry red color, as any deviation
toward brownish tones indicates a loss in quality. Existing studies typically analyze …

Homography theories used for image mapping: a review

G Babbar, R Bajaj - 2022 10th International Conference on …, 2022 - ieeexplore.ieee.org
In computer vision, color homography is the key part of geometric methods and is used in
camera tuning, stereoscopic viewing, three-dimensional views, and many more. It …

Accurate device-independent colorimetric measurements using smartphones

M Nixon, F Outlaw, TS Leung - PLoS One, 2020 - journals.plos.org
Smartphones provide an ideal platform for colorimetric measurements due to their low cost,
portability and image quality. As with any imaging-based colorimetry system, ambient light …

Improving color reproduction accuracy on cameras

HC Karaimer, MS Brown - Proceedings of the IEEE …, 2018 - openaccess.thecvf.com
One of the key operations performed on a digital camera is to map the sensor-specific color
space to a standard perceptual color space. This procedure involves the application of a …

Color homography: theory and applications

G Finlayson, H Gong, RB Fisher - IEEE transactions on pattern …, 2017 - ieeexplore.ieee.org
Images of co-planar points in 3-dimensional space taken from different camera positions are
a homography apart. Homographies are at the heart of geometric methods in computer …

Comparative Evaluation of Color Correction as Image Preprocessing for Olive Identification under Natural Light Using Cell Phones

D Mojaravscki, PS Graziano Magalhães - AgriEngineering, 2024 - mdpi.com
Integrating deep learning for crop monitoring presents opportunities and challenges,
particularly in object detection under varying environmental conditions. This study …

Designing color filters that make cameras more colorimetric

GD Finlayson, Y Zhu - IEEE Transactions on Image Processing, 2020 - ieeexplore.ieee.org
When we place a colored filter in front of a camera the effective camera response functions
are equal to the given camera spectral sensitivities multiplied by the filter spectral …

[PDF][PDF] Using a simple colour pre-filter to make cameras more colorimetric

G Finlayson, Y Zhu, H Gong - 2018 - ueaeprints.uea.ac.uk
The idea of placing a coloured filter in front of a camera to make it more colorimetric has
been previously proposed. However, this prior art approach sought to increase the …

As-projective-as-possible bias correction for illumination estimation algorithms

M Afifi, A Punnappurath, G Finlayson… - Journal of the Optical …, 2018 - opg.optica.org
Illumination estimation is the key routine in a camera's onboard auto-white-balance (AWB)
function. Illumination estimation algorithms estimate the color of the scene's illumination from …

Additivity constrained linearisation of camera calibration data

CF Andersen, I Farup… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
When characterising a digital camera spectrally or colourimetrically, the camera response to
a generally diffusely reflecting colour chart is often employed. The recorded responses to the …