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# Chandra Kurniawan

### National Institute of Technology Indonesia

Active since 2011

Learn digital image processing with Matlab.
I regularly delete my unaccepted answers.
Professional Interests: Image processing

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How do I combine multiple plots in one graph?
To combine multiple plots in one graph, use the “hold on” command, such as: plot(1:10) hold on plot(11:20) hold off ...

ongeveer 3 jaar ago | 11

| accepted

Convert AVI file to series of images
Hi, This is the simpler version : obj = mmreader('rhinos.avi'); vid = read(obj); frames = obj.NumberOfFrames; f...

bijna 10 jaar ago | 4

| accepted

Image to binary conversion
for i = 1 : a for j = 1 : b k{i,j} = dec2bin(image(i,j)); end end please use cell-array to s...

bijna 10 jaar ago | 0

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matlab code
The error message sounds you accessed X(213,1) while the size of X is 212x320 X is a gray image generated from command : X = ...

bijna 10 jaar ago | 0

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resize subplot
Hi, Pan You can use 4 axes and replace command subplot with imagesc(vid2(:,:,:,frame3),'parent',axeshandle); This is...

bijna 10 jaar ago | 0

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make history
Hi, Rahma I have seen your picture. I think I cannot do it with your way. Imagine if we have A-m-5 in 1st component an...

bijna 10 jaar ago | 1

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combine binary image
Hi, I think, first you should check whether the data is empty or not using for-loop. hnd = {handles.cJalan,handles.cSung...

bijna 10 jaar ago | 1

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how to use fopen in this situation?
Hi, ts is cell array. please try ts = cell2mat(ts); after line ts = inputdlg(prompt,dlg_title,num_lines,def...

bijna 10 jaar ago | 1

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how to saving image of quadtree from axes

bijna 10 jaar ago | 0

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how to use button that controls video?

bijna 10 jaar ago | 0

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Hi, Let say I have 2 GUIs. untitled1 untitled2 In first GUI I have pushbutton to call the second GUI. Just...

bijna 10 jaar ago | 1

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External functions (with a GUI)
Hi, Maybe this will helps. I have GUI as shown in picture below : <<http://i1196.photobucket.com/albums/aa410/nasa078/M...

bijna 10 jaar ago | 1

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use subplot play video
Hi, maybe obj = mmreader('xylophone.mpg'); vid = read(obj); for frame = 1 : size(vid,4) bw = im2bw(vid(:,:,:,f...

bijna 10 jaar ago | 0

| accepted

centroid of an image
Hi, did you mean 'find centroid of objects in an image'?? use *regionprops* with property : centroid Eg : stat = regio...

bijna 10 jaar ago | 6

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create target for neural network
Hi, Remo Feature vector that extracted from an image ideally m x 1 matrix. You said that it's 42 x 42. Is it means 42 feat...

bijna 10 jaar ago | 1

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How to Capture objects in big image and divided them to small images?
This code works just for this image only Irgb = imread('b653er.jpg'); Igray = rgb2gray(Irgb); Ibw = im2bw(Igray,grayt...

bijna 10 jaar ago | 0

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How to crop out the barcode??
D = C > 20; Ilabel = bwlabel(D); stat = regionprops(Ilabel,'boundingbox'); for x = 1 : length(stat) Icrop{x} =...

bijna 10 jaar ago | 0

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need help on a simple question.
Hi, please replace * fprintf ('The char is %4s\n','s',char)* with * fprintf ('The char is %s\n',char);*

bijna 10 jaar ago | 0

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Solved

Increment a number, given its digits
Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

bijna 10 jaar ago

Solved

Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

bijna 10 jaar ago

Solved

Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

bijna 10 jaar ago

Solved

Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

bijna 10 jaar ago

Solved

Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

bijna 10 jaar ago

Solved

Find common elements in matrix rows
Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

bijna 10 jaar ago

Solved

Reverse Run-Length Encoder
Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

bijna 10 jaar ago

Solved

Counting Sequence
Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...

bijna 10 jaar ago

Solved

De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

bijna 10 jaar ago

Solved

Duplicates
Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

bijna 10 jaar ago

Solved

Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

bijna 10 jaar ago

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

bijna 10 jaar ago