TY  - THES
N1  - Dr. Shofwatul ?Uyun M.Kom.
ID  - digilib21309
UR  - https://digilib.uin-suka.ac.id/id/eprint/21309/
A1  - SURAHMAT LAGUNI, NIM. 12651044
Y1  - 2016/06/28/
N2  - Mammogram image is an image result from an X-ray examination process called mammography. Mammographic examination is performed to detect breast cancer. This enables a doctor to see any abnormality in a patient as early as possible. The problem is the similarity between abnormalities and non-abnormalities in mammogram images due to nearly the same contrast level. Therefore, a serious preprocessing stage is required to improve the accuracy of detection and clarify parts of images. Preprocessing stage includes ROI selection and image conversion to grayscale. After grayscaling, filtering is performed using Adaptive Median Filter method. Then, image contrast is modified using CLAHE method. After improving the contrast, an image is segmented using Region Growing method. The results of analysis and test showed that the implementation of preprocessing method had adequate result. It?s evidence in AMF method where the average value of PSNR is 42,3092 dB with standard deviation of 1,98 and the average value of MSE is 4,1386 with standard deviation of 1,36. While using MF method, the average value of PSNR is 9.0918 with standard deviation of 3,08. The result of improving contrast by CLAHE method showed the best result at clip limit 2 and region size 2 x 2 as evidenced by the completeness of image features and accuracy of segmentation result.
PB  - UIN SUNAN KALIJAGA YOGYAKARTA
KW  - Preprocessing on mammogram image
KW  -  Contrast Limited Histogram Equalization
KW  -  Adaptive Media Filter
KW  -  Region growing
M1  - skripsi
TI  - ANALISIS METODE PREPROCESSING PADA CITRA MAMMOGRAM
AV  - restricted
ER  -