forked from justinblaber/ncorr_2D_matlab
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ncorr_util_properimgfmt.m
47 lines (44 loc) · 2.25 KB
/
ncorr_util_properimgfmt.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
function outstate = ncorr_util_properimgfmt(img,name)
% This function determines if the input images (either a numeric array or a
% string input of the filename with path) have the correct format. The
% string allows us to test for saved images without explicitly loading them,
% while the array allows us to test images which were loaded through the
% matlab workspace and may not be explicitly saved.
%
% Inputs -----------------------------------------------------------------%
% img - numerical array or string;
% name - string; used to display errordlg if array is incorrect format
%
% Outputs ----------------------------------------------------------------%
% outstate - integer; returns either out.cancelled, out.failed, or out.success.
%
% Limiting size of 5x5 is due to the fact that the b-spline coefficients
% need a size of at least 5 in each direction to be convolved with the
% kernel in ncorr_class_img.form_bcoef(). This is subject to change.
% Also note that existance of the image must be checked (in the case a
% filename is passed) before calling this function.
% Initialize outputs
outstate = out.failed;
if (isnumeric(img))
% Test array directly
if ((isa(img,'uint8') || isa(img,'uint16') || isa(img,'double')) && ...
(length(size(img)) == 2 || length(size(img)) == 3) && (size(img,3) == 1 || size(img,3) == 3) && ...
size(img,1) >= 5 && size(img,2) >= 5)
% Image format is correct
outstate = out.success;
end
elseif (ischar(img))
% Test using imfinfo
info_img = imfinfo(img);
if ((strcmp(info_img.ColorType,'truecolor') || strcmp(info_img.ColorType,'grayscale') || strcmp(info_img.ColorType,'indexed')) && ...
info_img.Height >= 5 && info_img.Width >= 5)
% Image format is correct
outstate = out.success;
end
end
% Display error dialogue if image format isnt correct
if (outstate == out.failed)
h_error = errordlg([name ' must be of class uint8, uint16, or double, have size of mxn or mxnx3, and must have a height and width greater than or equal to 5.'],'Error','modal');
uiwait(h_error);
end
end