ENGINEERING JOURNAL: PENDETEKSI TEPI DENGAN METODE SELISIH

Jurnal REKAYASA Volume 7 Nomor 2 Artikel 5

Dwiretno Istiyadi Swasono
(Staf pengajar Program Studi Sistem Informasi, Universitas Jember).

ABSTRACT: Edge detection method utilize difference graylevel difference between the adjacent pixels image. As known that the edge of the image shows the difference in composition of red, green and blue (RGB) between pixels. For color images need to be converted first into grayscale image. Then for each pixel was calculated difference graylevel with 4 neighbors. A threshold value was chosen to determine the next value of the graylevel. If one of the differences of graylevel with four neighbors is less than the threshold value then the pixel is given the value graylevel 0. If larger then the pixel is given the value graylevel 255. By applying this method to the entire pixel image the new binary image will be created. By varying the threshold value it will get different results and can be adjusted as desired. The advantages of this method is quite simple and is able to remove noise dots that are not needed that often arise when using conventional edge detection methods such as method of Sobel, Prewitt, or Robert.

Keywords: edge detection, difference method, grayscale, threshold value

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ENGINEERING JOURNAL : DESAIN DAN IMPLEMENTASI DEBIAN GNU/LINUX SEBAGAI GATEWAY DAN ROUTER SERVER GUNA TERHUBUNG KE INTERNET

Jurnal Rekayasa Vol 2 No 1 Artikel 4

Agus Hariyanto
(Staf Pengajar Jurusan MNA, Program Studi Teknik Komputer, Politeknik Negeri Jember)


ABSTRACT

Router or gateway is the connector between a computer network and other one with different topology and class. Actually, Router and gateway theoretically have a different meaning philosophy. Gateway really looks like a bridge can connect two networks which have different topology and subnet. While, router has a function to manage data packet addressing in different network, so that we can conduct the communication.

Key Words: Router , gateway ,intranet, internet

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ENGINEERING JOURNAL : PENGGUNAAN MIKROPROSESOR INTEL 8088 SEBAGAI ALAT PENGUJI IC DIGITAL

Jurnal Rekayasa Vol 2 No 1 Artikel 3

Nugroho Setyo Wibowo
(Staf Pengajar Program Studi Manajemen Informatika & Teknik Komputer, Politeknik Negeri Jember)

ABSTRACK

Electronics technology development nowadays is very advance, so the working activity which done by manual in the beginning can be replaced by equipments controlled in electronic with the small supporter component but have own ability, high correctness and speed. One of among other things is microprocessor use as a centre of data processing for the system of examination IC (Integrated Circuit) digital. By using microprocessor Intel 8088 functioned by as minimum mode as controller of the core important, hence digital examination IC system can be done in electronic. A digital type IC to be tested to by earns the input of through keyboard which has been provided. Microprocessor will give the data to IC examinee later; then data yielded by IC perceived by the data and microprocessor compared to by a correctness data which have on file in memory. If data response from the IC examinee as according to existing real correct data, hence microprocessor will express that IC of mentioned in good circumstance. If on the contrary that happened hence microprocessor will express that the IC ugly. End result from this examination is presented by through displayed. To plan the development hereinafter will be more give the facility if can be attributed by a personal computer. Any program and book can be kept and taken away by a personal computer having storage media of larger ones and more practical.

Key Words: Integrated Circuit, Microprocessor

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