Judul: Feature Extraction Based on Color, Shape and Texture for Animal Image Retrieval.
Abstrak: The differences in color, shape, and texture characteristics between each animal cause difficulties in animal image retrieval. Therefore, specified technique is needed to obtain pattern from each animal’s feature so that image retrieval might works properly. One of the techniques to obtain the pattern done by feature extraction. This research tries to develop image extraction method in Content Based Image Retrieval approach by using three image visual features (color, shape, texture). In this research, Fuzzy Color Histogram (FCH) for color feature extraction is used through computing the membership function using Cauchy function. In FCH, one color may belong to two bins histogram or more with different membership functions. Then, shape feature is extracted using edge direction histogram, where each image is processed using Sobel edge detection, and then the direction is mapped into a defined bin histogram. For texture feature extraction, the process uses co-occurrence matrix with computing the values of energy, moment, entropy, maximum probability, contrast, correlation and homogeneity. Similarity value between image query and images in database is computed based on its features, those are color, shape, texture, and its combination. Recall and precision value resulted in this research shows the largest average precision value is obtained from searching process using index combination (color, shape, texture) of feature extraction. Keywords: feature extraction, Fuzzy Color Histogram, edge direction histogram, co-occurrence matrix
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Judul: Image Searching Using Heuristic Method for Image Retrieval System.
Abstrak: The development of image retrieval system and user demand for a fast and accurate search engine motivates research on finding efficient retrieval methods. Commonly, image searching process works through computing and comparing similarity value between input query and entire database images. This process is not efficient due to time-wasting during computation especially for large database. This research proposes heuristic method for image searching. The basic idea of this research deals with structural database content that reduces searching time. This research implements fitness landscape model. Fitness landscape is kind of directed graph whose labeled vertices and edges. Each node represents an image and each edge represents distance or similarity value of a node to other connected nodes. Similarity value between nodes are computed using combination of three image features, those are color, shape, and texture. Heuristic algorithm moves on these nodes with Breadth-First Search mechanism under certain constraints. Each visited node that fulfills the requirement will be retrieved as searching result. This retrieval result is then evaluated using recall precision parameter to get value of searching effectiveness. This experiment also computes retrieval time for each query. As the result, heuristic method obtains average retrieval time up to nine times faster compared with the non-heuristic one. Hence, this proposed method is promising to be used in image retrieval system because it provides fast image searching. Keywords: image searching, fitness landscape, heuristic, content based image retrieval.
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Judul: Pengaruh Program Pemberian Tablet Tambah Darah (TTD) Terhadap Perbaikan Status Besi pada Remaja Putri di Kota Bogor
Abstrak: Anemia merupakan masalah gizi mikro yang banyak terjadi di seluruh dunia terutama di negara berkembang yang diperkirakan terjadi pada 30% populasi penduduk dunia. Sebesar 29% Wanita Usia Subur (WUS) yang tidak hamil mengalami anemia serta 38% wanita hamil usia 15-49 tahun mengalami anemia (WHO 2011). Anemia pada remaja putri sampai saat ini masih cukup tinggi. Data Kemenkes (2013) menunjukkan prevalensi anemia gizi pada kelompok usia remaja (≥15 tahun) adalah 22.2%, meningkat dari data Kemenkes tahun 2007 yakni 19.7% terkait kejadian anemia pada usia remaja (Kemenkes RI 2007; Kemenkes RI 2013). ...
Keyword: anemia, efektivitas, remaja putri, suplementasi besi