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Imam Saputra
Program Studi Teknik Informatika STMIK Budi Darma, Medan
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

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IMPLEMENTASI METODE TRANSFORMASI FOURIER DAN SIMILARITY MEASUREMENT UNTUK PERBAIKAN CITRA UNDERWATER Istanto Gultom; Nelly Astuti Hasibuan; Imam Saputra
KOMIK (Konferensi Nasional Teknologi Informasi dan Komputer) Vol 2, No 1 (2018): Peranan Teknologi dan Informasi Terhadap Peningkatan Sumber Daya Manusia di Era
Publisher : STMIK Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/komik.v2i1.927

Abstract

Nowadays many people pursue photography, some make it a job and not many people pursue photography as a hobby and for fun. The object sought also varies, for example public places and even underwater objects. Underwater photography activities are usually called underwater photography which is done during scuba diving. There are several factors that influence image quality in underwater photography activities, one of which is caused by absorption and scattering of sunlight when it reaches the sea floor. This is an obstacle if you want to get high quality images. This is because some pixels are brighter than other shimmering pixels [1]. Image quality improvement is the right solution to fix the problem in the underwater imagery described above. The method used to improve image quality is Fourier Transformation and Similiarity Measurement. First improvements using Fourier transformation and after repairing, the distance between the two objects is similar, the image after repair and before repair.Keywords: Underwater Imagery, Fourier Transform, Similarity Measurement
PERBANDINGAN METODE HOMOMORPHIC FILTERING DAN METODE CONTRAST STRECHING UNTUK PERBAIKAN KUALITAS CITRA UNDERWATER Adi Mora Lubis; Nelly Astuti Hasibuan; Imam Saputra
KOMIK (Konferensi Nasional Teknologi Informasi dan Komputer) Vol 2, No 1 (2018): Peranan Teknologi dan Informasi Terhadap Peningkatan Sumber Daya Manusia di Era
Publisher : STMIK Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/komik.v2i1.928

Abstract

Digital imagery is a two-dimensional image process through a digital computer that is used to manipulate and modify images in various ways. Photos are examples of two-dimensional images that can be processed easily. Each photo in the form of a digital image can be processed through a specific software. In the water environment, the light factor greatly influences the results of the quality of the image obtained. With the deepening of underwater shooting, the results obtained will be the darker the quality of the underwater image. . uneven lighting and bluish tones. One of the factors that influence the recognition results in pattern recognition is the quality of the image that is inputted. The image acquired from the source does not always have good quality. The process of repairing digital images that experience interference in lighting. The lighting repair process uses homomorphic filtering and uses contrast striching and will compare the quality of both methods and test to prove the results of image quality between homomorphic filtering and contrast streching. Until later the results of both methods can be seen which is better. homomorphic filtering and contrast stretching can produce image improvements with pretty good performance.Keywords: Digital Image, Underwater Image, Homomorphic Filtering, Contrast Streching, Matlab R2010a
Co-Authors Adi Mora Lubis Istanto Gultom Nelly Astuti Hasibuan