cropping all images in a folder with different coordinates

i use the following MATLAB code to crop all images in a folder, it works perfectly but the problem is that it crops all the images with the same coordinates, what i want is to crop each image with specific coordinate. the coordinates of the images exist in a table in order, for example the coordinates of the image 1 are in row 1 and so on. here is the code to get the coordinates in a table:

filename = 'fich.txt';
fid = fopen(filename);
A = textscan(fid, '%*s%*s%*s%*s%f%f%*f');
res = cell2mat(A);
res(isnan(res))=300;
fclose(fid)

and here is the code that cropps all images with the same coordinates:

% operating all pictures in a folder
clear all
close all
clc
dname_open = ('myfold')         ; %Default Directory To be Opened
dname_save = ('myfold-cropped')      ;
test = 0 ; % 0 - does every file in folder, 1 - only does first file
%%Set up basic file name path to read
top_file= [dname_open '\']   ;   %Set up main database to open and look inside
ls_top_file    = ls(top_file)    ;   %List Files inside main folder
c   = cellstr(ls_top_file)       ;   %Turn cells from ls function into strings
cc   = c(3:length(c))  ; %Set up a matrix without the . and .. produces by the ls function
S = size(cc)   ;   %Find the size of matrix containing names of files inside of main database
a   = 1  ;   %This counter is set to 3 to account for the . and .. at the beggining of each matrix created by ls
S(1)

while a <= S(1)
    close all
    file                                = char(cellstr([top_file char(cc(a))]))     ;   %File to be operated on
    data_n                              = char(cc(a))
    file_name                           = char(cc(a))                               ;

% Operations on files in folder
imagename = (file_name) ;

%Input image image
fileToRead2 = [dname_open '\' imagename] ;

I = imread(fileToRead2);
%I2 = imcrop(I, rect) crops the image I. rect is a four-element position
%vector[xmin ymin width height] that specifies the size and position of the crop rectangle.

I2 = imcrop(I,[189.5 1.5 588 1022]);
imshow(I2,'Border','tight')

set(gcf, 'PaperPositionMode', 'auto');
h = gcf ;
saveas(h, [dname_save '\' 'z_' imagename ], 'pgm');

if test == 1
    fprintf('breaking loop to set axis - test==1')
    break
end

      a                                   = a+1                                       ;
  end

thank you

Answer 1

[Image Analyst]

Get the values from your table and use them in imcrop. Let's say the table is called croppingRects.

thisCroppingRect = croppingRects(rowNumber, :);

Then pass it into imcrop:

% Instead of 
% I2 = imcrop(I,[189.5 1.5 588 1022])
% Do this:
I2 = imcrop(I, thisCroppingRect)

By the way, please don't use I as a variable. It looks too much like 1 and l.

[Image Analyst]

Read it in as numbers instead of text:

numbers = xlsread(theFileName);

but are those the xLeft and yTop, or the widths and heights? You need 4 numbers to do a crop, not just 2.

[Anounymous85]

@Image Analyst: After cropping an image using coordinates, can i save both cropped image and the rest?

Please help me with this.

[Image Analyst]

Yes. Start a new question with whatever code you have so far, and define what "the rest" is.

[Anounymous85]

@Image Analyst: I have started a new question.