Write and put notation inside image?

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Biza Ferreira 2014-6-28

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https://ww2.mathworks.cn/matlabcentral/answers/138173-write-and-put-notation-inside-image

评论： Image Analyst 2014-7-3

I people, I have two images and i applied the sift flow code, my images represent the blood flow.through the difference between the two images can obtain the direction of blood flow.this difference results in a single image (matrix), I converted all the values in the array into a vector, my idea is to sort an array positions for the non-repeated values, and adding to the sum of the other array positions repeated, for example:

A=[1 1 0 0 0; 0 0 0 1 1; 1 1 1 1 1]
vector=[1 1 0 0 0 0 0 0 1 1 1 1 1 1 1] 
non-repeated=[0 1]
sum_positions=[6 9]

I'm trying to do this in order to group the values in an equal position. So when do imshow () values that have between 0 and 50 can write in the image "background". 51 and 100 "background or not" can someone help me

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Answer 1

Image Analyst 2014-6-29

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https://ww2.mathworks.cn/matlabcentral/answers/138173-write-and-put-notation-inside-image#answer_142878

In your example, what variables do you already have and which do you want to obtain? And what does imshow() have to do with anything? None of your variables have values like 51 or 100 . And how did you obtain sum_positions as 6 and 9? What is being summed????

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

http://www.mathworks.com/matlabcentral/answers/728-how-do-i-write-a-good-question-for-matlab-answers

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Image Analyst 2014-6-29

在 MATLAB Online 中打开

Biza's "Answer" moved here since it's not an answer to the original posted question but actually a reply to me.

Image Analyst, I have one matrix with 25345 values between 0 and 255 values some repeated. I want to create two vectors, one with no repeated values, and another that counts the values that repeat ... for example

clc;
clear all;
close all;
A=imread('imagem60.tif');%load image
A = double(A);
vector=A(:); %conversion image on vector
C=unique(vector')   %turn values in one unique vector
dimentionA = length(vector);%count dimension of A
dimentionC = length(C);%count dimension of unique vector of C
count =0; % count initialise in 0
for (i=1:dimentionC) %
  for (j=1:dimentionA)
    
    
    
  end
end

Now with these two for loops, I want to check on the position c how many values of A are repeated. Like the first position equal to C 0, as many 0 exist in the vector A. He runs A vector and sum all 0. should you not find more moves to the next position in C vector and 2 is now the new value to find. And go to vector A and crosses the whole array and counts how many values there are 2. do this until there are no more values in the vector C.

Before that I command values or order (color) and between intrevalos color values between 0 and 50, I put a note on the image mark the region as "background", the interval between 51 and 100 to 255 other note.

Biza Ferreira 2014-7-3

my image is in grayscale and I want to group similar pixels and assigning a color to each group. example: between 0 and 25 pixel's color "0" (black)

Image Analyst 2014-7-3

The code I just showed you does exactly that. Did you try it? It came from my Image Segmentation Tutorial http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 Run that if you want to see it in action.

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