Camouflage images

Hung Kuo Chu, Wei Hsin Hsu, Niloy J. Mitra, Daniel Cohen-Or, Tien Tsin Wong, Tong Yee Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Camouflage images contain one or more hidden figures that remain imperceptible or unnoticed for a while. In one possible explanation, the ability to delay the perception of the hidden figures is attributed to the theory that human perception works in two main phases: feature search and conjunction search. Effective camouflage images make feature based recognition difficult, and thus force the recognition process to employ conjunction search, which takes considerable effort and time. In this paper, we present a technique for creating camouflage images. To foil the feature search, we remove the original subtle texture details of the hidden figures and replace them by that of the surrounding apparent image. To leave an appropriate degree of clues for the conjunction search, we compute and assign new tones to regions in the embedded figures by performing an optimization between two conflicting terms, which we call immersion and standout, corresponding to hiding and leaving clues, respectively. We show a large number of camouflage images generated by our technique, with or without user guidance. We have tested the quality of the images in an extensive user study, showing a good control of the difficulty levels.

Original languageEnglish
Title of host publicationSIGGRAPH '10
Subtitle of host publicationACM SIGGRAPH 2010 papers
EditorsHugues Hoppe
PublisherAssociation for Computing Machinery (ACM)
ISBN (Electronic)9781450302104
StatePublished - 26 Jul 2010
Event37th International Conference and Exhibition on Computer Graphics and Interactive Techniques, SIGGRAPH 2010 - Los Angeles, United States
Duration: 26 Jul 201030 Jul 2010

Publication series

NameACM SIGGRAPH 2010 Papers, SIGGRAPH 2010


Conference37th International Conference and Exhibition on Computer Graphics and Interactive Techniques, SIGGRAPH 2010
Country/TerritoryUnited States
CityLos Angeles


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