Dominant Colors as Image Content Descriptors: A Study with Users

Soraia M. Alarcão, R. Pavão, Manuel J. Fonseca
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Abstract

Image content are typically described using low level features such as color, texture, shape, or a combination of the previous. A particular use of color is the identification of the dominant colors in images to describe its content, for image retrieval, for instance. In this paper, we present a study with users to verify if the dominant colors can be used as image content descriptors. From the study we identified the dominant and the search colors users associated to a set of images. We supplemented this information with gaze coordinates, collected with an affordable eye tracker, to register the regions at which people looked while identifying colors in the images. The analysis of the data revealed that users used a small set of color names, and that the colors used for searching were similar to those considered dominant, validating the use of dominant colors as image descriptors. As a result of the study, we make available a dataset of 100 images annotated with their dominant colors, the colors that users would use to search for them, and the areas where they looked while identifying both types of colors.
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主色作为图像内容描述符:用户研究
图像内容通常使用低级特征来描述,例如颜色、纹理、形状或上述特征的组合。颜色的一个特殊用途是识别图像中的主色来描述其内容,例如用于图像检索。在本文中,我们提出了一个与用户的研究,以验证主色是否可以用作图像内容描述符。从研究中,我们确定了用户与一组图像相关的主要和搜索颜色。我们用眼球追踪器收集的注视坐标来补充这些信息,以记录人们在识别图像颜色时所注视的区域。对数据的分析显示,用户使用了一小部分颜色名称,并且用于搜索的颜色与那些被认为是主要颜色的颜色相似,从而验证了主要颜色作为图像描述符的使用。作为这项研究的结果,我们提供了一个100张图片的数据集,其中标注了它们的主色,用户会用来搜索它们的颜色,以及他们在识别这两种颜色时所看到的区域。
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