cutable = readtable ('frame1.csv'); % i,x,y,w,h,no.of bits
carray = table2array (cutable);
len = length (carray);
idx = carray (:,1);
w = carray (:,2);
h = carray (:,3);
x = carray (:,4) + 1;
y = carray (:,5) + 1;
b = carray (:,6);
maxx = max(x + w - 1);
maxy = max(y + h - 1);
img = zeros(maxy, maxx);
for K = 1 : numel(x)
tx = x(K); ty = y(K);
img(ty:ty+h(K)-1, tx:tx+w(K)-1) = b(K);
end
img8 = uint8(rescale(img, 0, 255));
subplot(2,1,1);
image(img8)
colormap(gray(256))
title('linear');
minb = min(b);
scaleb = log(b ./ minb);
img = zeros(maxy, maxx);
for K = 1 : numel(x)
tx = x(K); ty = y(K);
img(ty:ty+h(K)-1, tx:tx+w(K)-1) = scaleb(K);
end
subplot(2,1,2);
imgL = uint8(rescale(img, 0, 255));
image(imgL)
colormap(gray(256))
title('log')
It looks to me as if the x, y indexing is not correct
You indicate that the first column is the index, but you have multiple entries with the same index, such as
64,32,32,32,0,449
64,16,16,32,0,139
It looks to me as if the first four columns have to do with position and size. However you have entries such as
0,64,64,0,0,2316
and if we try to interpret those as x y w h or w h x y then we seem to encounter either x or h that are 0, which does not sound correct.
