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    Penghalusan Citra Lokal Adaptif pada B-Spline Hirarki

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    Date
    2014
    Author
    Suriati
    Advisor(s)
    Mawengkang, Herman
    Efendi, Syahril
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    Abstract
    Digital image processing is an important part in the field of Information Technology, especially in the field of multimedia. Digital image is obtained through the process of enlargement of the image needs to be smoothed in an appropriate manner, so that the magnification of an image over to the state of the original image. This research aims to develop a method of smoothing the image due to the enlargement process with regard to local circumstances natural picture images. B - Spline method with quadratic interpolation in two dimensions combined with hierarchy process with attention to areas that change rapidly. The procedure was performed to determine beforehand the location of the image which changes color rapidly, then the transformation region found on every 3 × 3 a point on the surface to form a square image. Quadratic functions are used as transformation. Programming using MATLAB developed and applied to the image size varies according to changes in the color and size of the image is enlarged twice with jpeg types. Results were analyzed with the smoothing process chart shows the color value. In the implementation using three images that have different characteristics, the results obtained that leads to smoothing the original image.
     
    Pengolahan citra digital merupakan bagian penting dalam bidang Informatika, khusus nya di bidang multimedia. Citra digital yang diperoleh melalui proses pembesaran citra perlu dihaluskan dengan cara yang sesuai, sehingga hasil perbesaran merupakan citra yang menghampiri keadaan citra asal. Penelitian ini bertujuan untuk mengem bangkan metode penghalusan citra akibat proses pembesaran dengan memperhatikan keadaan lokal untuk citra gambar alamiah. Metode B-Spline dengan interpolasi kua dratik dalam dimensi dua dikombinasikan dengan proses hirarkhi dengan memper hatikan daerah yang perubahannya cepat. Prosedur dilakukan menentukan terlebih dahulu lokasi citra yang perubahan warnanya cepat, kemudian pada kawasan yang ditemukan dilakukan transformasi terhadap setiap 3×3 titik di permukaan citra yang membentuk bujur sangkar. Fungsi Kuadratik digunakan sebagai transformasi. Pem rograman menggunakan Matlab dikembangkan dan dikenakan kepada citra berukuran bervariasi menurut perubahan warna dan ukuran gambar yang diperbesar dua kali de ngan jenis jpeg. Hasil proses penghalusan dianalisis dengan menunjukkan grafik nilai warna. Dengan implementasi menggunakan tiga citra yang mempunyai karakteristik yang berbeda, diperoleh bahwa hasil penghalusan menuju kepada gambar aslinya.

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    http://repositori.usu.ac.id/handle/123456789/37658
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    • Master Theses [621]

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    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV