Cited by 1,166Visual perception and processing mechanismsImage Enhancement TechniquesVisual Attention and Saliency Detection

Controlling low-level image properties: The SHINE toolbox

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Willenbockel, Verena, Sadr, Javid, Fiset, Daniel, Horne, Greg O., Gosselin, Frédéric, Tanaka, James W.·2010·Behavior Research Methods

Abstract

Visual perception can be influenced by top-down processes related to the observer's goals and expectations, as well as by bottom-up processes related to low-level stimulus attributes, such as luminance, contrast, and spatial frequency. When using different physical stimuli across psychological conditions, one faces the problem of disentangling the contributions of low- and high-level factors. Here, we make available the SHINE (spectrum, histogram, and intensity normalization and equalization) toolbox for MATLAB, which we have found useful for controlling a number of image properties separately or simultaneously. The toolbox features functions for specifying the (rotational average of the) Fourier amplitude spectra, for normalizing and scaling mean luminance and contrast, and for exact histogram specification optimized for perceptual visual quality. SHINE can thus be employed for parametrically modifying a number of image properties or for equating them across stimuli to minimize potential low-level confounds in studies on higher level processes.

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  • Task-irrelevant face and hand stimuli were matched for luminance across conditions using the SHINE toolbox.

    “Task-irrelevant stimuli (i.e., face and hand stimuli) were matched for luminance across conditions using the SHINE (Spectrum, Histogram, and Intensity Normalization and Equalization)toolbox (Willenbockel et al., 2010) for Matlab 8.3 (TheMathworks, Inc., MA).”
  • Hand stimuli were matched for luminance using the SHINE toolbox to avoid perceptual differences or attentional effects driven by differential luminance characteristics of the ethnically diverse hand wrists.

    “Moreover, in order to avoid perceptual differences or attentional effects driven by differential luminance characteristics of the ethnically diverse hand wrists, hand stimuli were matched for luminance using the SHINE (Spectrum, Histogram, and Intensity Normalization and Equalization) toolbox56 for Matlab 8.3 (TheMathworks, Inc., MA).”

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  1. De Valois, R. L., & De Valois, K. K. (1990). Spatial vision. New York: Oxford University Press.

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Authors
Willenbockel, V., Sadr, J., Fiset, D., Horne, G. O., Gosselin, F., & Tanaka, J. W.
Affiliations
  • Université de Montréal (CA)
  • University of Massachusetts Boston (US)
  • University of Victoria (CA)
Corresponding author
Willenbockel, Verena
Venue
Behavior Research Methods
Published
2010-08
Volume
42
Issue
3
Pages
671-684
ISSN
  • 1554-351X (ISSN-L)
  • 1554-3528
OpenAlex
W2013137720
Cited by
1,166
References
63
Citations by year
2026: 88 · 2025: 112 · 2024: 108 · 2023: 96 · 2022: 101 · 2021: 111 · 2020: 100 · 2019: 91 · 2018: 90 · 2017: 74 · 2016: 68 · 2015: 47 · 2014: 44 · 2013: 16 · 2012: 8
FWCI
6.69
Type
journal article
Language
en
Open access
Locations
  • Behavior Research Methods (publishedVersion)
  • PubMed (publishedVersion)
Funders
Université de Montréal
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Image Enhancement Techniques
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
Keywords
image normalization, histogram matching, Fourier amplitude spectra, contrast normalization, visual perception, top-down and bottom-up processing, MATLAB toolbox
MeSH terms
Algorithms, Calibration, Fourier Analysis, Humans, Pattern Recognition, Visual, Photic Stimulation, Reference Values, Software, Contrast Sensitivity

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