THE ANALYSIS OF COMPARISON RESULTS USING EROSION AND OPENING ON THE PIAS CARD SEGMENTATION PROCESS (CASE STUDY: ST. BARONGAN)

Asih Pujiastuti

Submitted : 2018-09-28, Published : 2019-05-06.

Abstract

This research was conducted to improve the application used in the calculation of the sunshine duration. The research that has been done using the opening method for segmentation of the pias card. The error or failure of segmentation is caused by a small burning object of the pias card and or a thin but translucent object, so that the object is partially lost or forms an object's separation area. Based on the error or failure of segmentation in the above research, the research will be done is to develop similar applications by replacing one of the methods  with erosion morphology. The test was carried out with 92 data and the results stated that Erosion with Radius = 3 became the best alternative method in this research with RMSE 3.14.

 

Keywords

segmentation, object, pias card,opening, erosion

References

Fan, Q., & Zhang, Y. (2013, October). A scorch extraction method for the Campbell-Stokes sunshine recorder based on multivariable thresholding. In Imaging Systems and Techniques (IST), 2013 IEEE International Conference on (pp. 410-414). IEEE.

Gonzalez, R.C. dan Woods, R.E., 2008, Digital Image processing, Addison- Wesley Publishing Company, USA.

Horseman, A., Richardson, T., Boardman, T., Tych, W., Timmis, R., & Mackenzie, R. (2013). Calibrated digital images of Campbell–Stokes recorder card archives for direct solar irradiance studies. Atmospheric Measurement Techniques, 6(5), 1371-1379.

Pujiastuti, A., & Harjoko, A. (2016). Sistem Perhitungan Lama Penyinaran Matahari dengan Metode Otsu Threshold (Studi Kasus: St. Klimatologi Barongan). Compiler, 5(2).

Pujiastuti, A. (2017). Segmentasi Citra Kartu Pias Tipe SO-40U (1400-40S) pada Perhitungan Lama Penyinaran Matahari. Angkasa, 9(2), 9-22.

Huang, Q., Gao, W., & Cai, W. (2005). Thresholding technique with adaptive window selection for uneven lighting image. Pattern recognition letters, 26(6), 801-808.

Sánchez-Romero, A., González, J. A., Calbó, J., & Sánchez-Lorenzo, A. (2015). Using digital image processing to characterize the Campbell–Stokes sunshine recorder and to derive high-temporal resolution direct solar irradiance. Atmospheric Measurement Techniques, 8(1), 183-194.

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