Apa itu filter pada pengolahan citra digital?

Digital Image Processing Quiz

Quiz
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Computers
•
University
•
Medium
andi hamdianah
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Filter adalah teknik untuk memodifikasi citra
2.
MULTIPLE SELECT QUESTION
30 sec • 5 pts
Apa ciri dari low-pass filter pada pengolahan citra?
Positive filter weights
Total weights equal to 1
Mean Filter and Gaussian Filter
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Pilih kode yang tepat untuk implementasi Mean Filter pada Matlab
kernel = ones(3, 3) / 9;
image_filtered = imfilter(image_gray, kernel, 'replicate');
gaussian_kernel = fspecial('gaussian', [5, 5], 1);
kernel = [0 -1 0; -1 4 -1; 0 -1 0];
filtered = medfilt2(image_gray, [3 3]);
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Mana kode yang paling tepat untuk implementasi Gausian Filter?
image_filtered = medfilt2(image_gray, [3 3]);
image_filtered = ordfilt2(image_gray, 9, ones(3, 3));
image_filtered = ordfilt2(image_gray, 1, ones(3, 3));
kernel = fspecial('gaussian', [5, 5], 1);
image_gaussian_filtered = imfilter(image_gray, kernel, 'replicate');
5.
MULTIPLE SELECT QUESTION
30 sec • 5 pts
Apa ciri dari highpass filter?
Bernilai positif ditengah dan bernilai negatif di pinggir
Total bobot 0
Total bobot 1
6.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
image = imread('image.jpg');
image_gray = rgb2gray(image);
kernel = [0 -1 0; -1 4 -1; 0 -1 0];
image_filtered = imfilter(double(image_gray), kernel);
Apakah kode di atas meruapkan implementasi dari Filter Laplacian?
Ya
Tidak
7.
FILL IN THE BLANK QUESTION
1 min • 5 pts
Salah satu filter non-linear
8.
FILL IN THE BLANK QUESTION
1 min • 5 pts
Fungsi Lowpass filter
9.
FILL IN THE BLANK QUESTION
30 sec • 5 pts
Berapa nilai pixel yang benar jika menggunakan filter Median?
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