Evidence map›Paper›PMID 36810612›Full record

ArticleScientific reports2023

Efficient quantization of painting images by relevant colors.

Zeinab Tirandaz, David H Foster, Javier Romero, Juan Luis Nieves

Abstract read
In one paragraph

Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Zeinab TirandazDepartment of Electrical and Electronic Engineering, University of Manchester, Manchester, M13 9PL, UK. zeinab.tirandaz@manchester.ac.uk.
David H FosterDepartment of Electrical and Electronic Engineering, University of Manchester, Manchester, M13 9PL, UK. d.h.foster@manchester.ac.uk.
Javier RomeroDepartment of Optics, University of Granada, 18071, Granada, Spain.
Juan Luis NievesDepartment of Optics, University of Granada, 18071, Granada, Spain.

Funding

Engineering and Physical Sciences Research Council EP/B000257/1, EP/E056512/1Junta de Andalucía A-TIC-050-UGR18Ministerio de Ciencia, Innovación y Universidades RTI2018-094738-B-I00
6 · The paper itself

Abstract

Realistic images often contain complex variations in color, which can make economical descriptions difficult. Yet human observers can readily reduce the number of colors in paintings to a small proportion they judge as relevant. These relevant colors provide a way to simplify images by effectively quantizing them. The aim here was to estimate the information captured by this process and to compare it with algorithmic estimates of the maximum information possible by colorimetric and general optimization methods. The images tested were of 20 conventionally representational paintings. Information was quantified by Shannon's mutual information. It was found that the estimated mutual information in observers' choices reached about 90% of the algorithmic maxima. For comparison, JPEG compression delivered somewhat less. Observers seem to be efficient at effectively quantizing colored images, an ability that may have applications in the real world.

Identifiers

PMID36810612
PMCPMC9944863

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.