• Journal of the Institute of Electronics Engineers of Korea SP
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• v.49 no.3
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• pp.67-73
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• 2012

Local color transfer is the process of assigning a given color to a local region in a target image. The local region that contains the given color has to be segmented. Conventionally, the segmentation of the corresponding local region in a target image is based on the color distance. The region which is the closest in color distance is separated. However, since the close range of color distance separating a given color from target image is ambiguous and uncertain, color distortion is often generated around a separated local region. Therefore, this paper addresses the problem of segmentation in a local color transfer. To prevent color distortion, a modified color influence map is proposed with color categories. First, the target image is roughly segmented using a color category map, which groups similar colors in color space. It restricts the color transfer to a specific color category according to a given color. Second, modified color influence map assigning different weight to lightness and chroma, respectively, is used instead of Euclidian color distance. Then, by combining a modified color influence map and color category map filtered with anisotropic diffusion, a local region that contains a given color can be segmented more strictly than conventional method.

• Journal of the Korean Institute of Rural Architecture
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• v.16 no.1
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• pp.1-8
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• 2014

This study investigated the characteristics of the establishment of an architectural guideline which is an important element of a urbanscape plan in basic landscape plans established by four local governments(a county level) in Jeollanam-do since the enactment of the landscape law. The results were as follows. The guideline for landscape plan elements was closely associated with shapes, materials, harmony, and coherence. For the detailed guideline for landscape plan elements, an architectural guideline on the arrangement, height, facade, and roof shapes of buildings, which is one of important elements related to urbanscape, was similar in local governments, showing a standard and uniform tendency. It indicates the limitation of forming urbanscape to enhance local identity and unique features and complementary contents are needed. The color guideline was classified into base color, sub color, and accent color in consideration of local features. In particular, natural material color was commonly used for base and sub color in all local governments. Therefore, it is necessary to develop unique material color and distinctive local color for each region.

• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.217-227
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• 2016

This study suggests story telling-based scenery color plan that uses local story resource in order to raise possibility of success in making characterized town implemented by Ulju-gun, Ulsan Metropolitan City. Characterized town making project of Eoeumhari Town is the first in Ulsan, and detailed project planning is going underway to transform it into story telling street by providing local story to the resource of Eoeumhari Town. Ulju-gun expects big help in luring tourists and activating local economy by maintaining these towns. As in this way, local marketing that uses story telling is recently being taken as a desirable way of overcoming the limit of local development, and it suggest new possibility of scenery color plan. Therefore, I attempted to extract Brand Story from story resources based on climatic color of Eoeumhari Town and apply them to the color plan in order to unique color identity with a town as a unit. It is significant to study as it suggests a direction to discover values of color which can be used for establishing local identity and activating local community breaking from current color plan by large-scale maintenance implemented by each local government.

• The Research Journal of the Costume Culture
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• v.17 no.2
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• pp.343-351
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• 2009

As more and more consumers shop online, websites of fashion brands have become effective means for business activities. The Colors of web sites are the most effective visual elements for e-tailers to communicate with consumers. The purpose of this study is to compare websites created for local and global markets by men's apparel brands. The empirical study focused on differences of color application between the local and global websites. Fourteen brands were chosen for the study. The main color, sub color, and accent color were extracted according to the screen component ratios for each website. The colors were analyzed by Munsell's 10 Hues and 12 tone classifications of Practical Color Coordinate System. The Results indicated that all websites were using White as the main color. The local website used pale tones while global websites used dark tones. There was also differences in the use of sub colors and tones. Red was most used as the accent color in both local and global websites.

• ETRI Journal
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• v.45 no.3
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• pp.505-517
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• 2023

Color, texture, and shape act as important information for images in human recognition. For content-based image retrieval, many studies have combined color, texture, and shape features to improve the retrieval performance. However, there have not been many powerful methods for combining all color, texture, and shape features. This study proposes a content-based image retrieval method that uses the combined local and global features of color, texture, and shape. The color features are extracted from the color autocorrelogram; the texture features are extracted from the magnitude of a complete local binary pattern and the Gabor local correlation revealing local image characteristics; and the shape features are extracted from singular value decomposition that reflects global image characteristics. In this work, an experiment is performed to compare the proposed method with those that use our partial features and some existing techniques. The results show an average precision that is 19.60% higher than those of existing methods and 9.09% higher than those of recent ones. In conclusion, our proposed method is superior over other methods in terms of retrieval performance.

• Journal of Korea Multimedia Society
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• v.18 no.12
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• pp.1453-1461
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• 2015

Since digital images and videos are rapidly increasing in the internet with the spread of mobile computers and smartphones, research on image retrieval has gained tremendous momentum. Color, shape, and texture are major features used in image retrieval. Especially, color information has been widely used in image retrieval, because it is robust in translation, rotation, and a small change of camera view. This paper proposes a new method for histogram refinement based on local color difference. Firstly, the proposed method converts a RGB color image into a HSV color image. Secondly, it reduces the size of color space from 256³ to 32. It classifies pixels in the 32-color image into three groups according to the color difference between a central pixel and its neighbors in a 3x3 local region. Finally, it makes a color difference vector(CDV) representing three refined color histograms, then image retrieval is performed by the CDV matching. The experimental results using public image database show that the proposed method has higher retrieval accuracy than other conventional ones. They also show that the proposed method can be effectively applied to search low resolution images such as thumbnail images.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 1995.06a
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• pp.83-86
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• 1995

Many image display devices allow only a limited number of colors to be simultaneously displayed. In displaying of natural color image using color palette, it is necessary to construct an optimal color palette and map each pixel of the original image to a color palette with fast. In this paper, we proposed the clustering algorithm using local region block centered one color cluster in the prequantized 3-D histogram. Cluster pairs which have the least distortion error are merged by considering distortion measure. The clustering process is continued until to obtain the desired number of colors. Same as the clustering process, original color image is mapped to palette color via a local region block centering around prequantized original color value. The proposed algorithm incorporated with a spatial activity weighting value which is smoothing region. The method produces high quality display images and considerably reduces computation time.

• Journal of the Korean Institute of Rural Architecture
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• v.13 no.4
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• pp.51-58
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• 2011

The purpose of this study was analyzing the features of architectural colors in Hongseong-gun and proposing environmental color design for regional identity color. According to the analysis, Hongseong's base colors are YR of low hue value and grayish tone colors. But a lot of signs and outdoor billboards mar the beauty of the environmental color. So it is more important to solve the problems as well as new environmental color design. The results are as follows; 1) Naepo Color Palette of 2009 Chungnam Public Design Master Plan would be an accepted principal for the contextual landscape image of Chungnam in macro perspective. 2) Outdoor signboards must be controlled and improved for the harmony of the buildings dominant colors. 3) Roof color would arrange R or grayish of deep tone colors those are similar balance of Hongseong base color YR, and gate color would have clear principles of the order such as chromatic or brightness contrast in housing. 4) Forming of future oriented image of Hongseong need to be considered first as to whether it is harmonious tones with existing local base colors.

• Journal of the Korean Society of Costume
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• v.61 no.6
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• pp.15-37
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• 2011

This study is on dancing dresses of the costumes of Gum-Mu(劍舞, sword dance) in southern, central, and northern region of Korea, focusing on the origin, characteristics and the way of dance. The reason why the Gum-Mu is full of local color is that royal Korean Gisaeng(妓生) and local Gisaeng returned to their hometown and propagated this dance to each regional Kyobang. They combined court sword with each local dance and music and formed the present style of regional Gum-Mu. Dance and music native to area, which has formed today's regional Gum-Mu. The composition of current dancing costume of the sword dance is Jeogori, Chima, Jeondae(戰帶), Jeonrib(戰笠), Kwaeja(快子) Also, The complement colors harmonizing with color of Yin-Yang & Five Elements. which are yellow, blue, white, red, and black, are usually used. And the masculinity in dance were expressed withmore use of blue, and red in the opposite but if a sword dance takes on masculine character, blue color is more used, if feminie character, reddish colors, such as pink and red, are used. Thus, JinJu, Honam, Haeju, Pyeongyang dancing Suit of Gum-Mu feature blue color, Tongyeong, Kyeonggi, Court(seoul)dancing Suit of Gum-Mu feature reddish color.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.12
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• pp.168-175
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• 2013

Color consistency in stereoscopic contents is important for 3D display systems. Even with a stereo camera of the same model and with the same hardware settings, complex color discrepancies occur when acquiring high quality stereo images. In this paper, we propose an integrated color matching method that use cumulative histogram in global matching and estimated 3D-distance for the stage of local matching. The distance between the current pixel and the target local region is computed using depth information and the spatial distance in the 2D image plane. The 3D-distance is then used to determine the similarity between the current pixel and the target local region. The overall algorithm is described as follow; First, the cumulative histogram matching is introduced for reducing global color discrepancies. Then, the proposed local color matching is established for reducing local discrepancies. Finally, a weight-based combination of global and local matching is computed. Experimental results show the proposed algorithm has improved global and local error correction performance for stereoscopic contents with respect to other approaches.