Quadtree decomposition (Encoding) and Decoding of RGB Image: var=converttoclass(var,type) - File Exchange

Code covered by the BSD License

Highlights from
Quadtree decomposition (Encoding) and Decoding of RGB Image

A =padtomakepowof2(A,varargin... % if required then add padvalue (defualt 0)
I=qtreedecode(S,values) % Decode QuadTree Represenation of Image given as Sparse matrix 'S' and
I=qtreergbdecode(S,valRGB) % Decode QuadTree date that is decomposed (encode) by qt3ddecom method
S=trimsparse(S) % trim sparse matrix by removing extra rows/columns that have all elements zeros.
[S,keys]=delsparsekeybyxANDy(...
[S,valRGB]=qt3ddecom(I,vararg... % This method uses three thresholds for red,green and blue blocks.
[b1r,b1c,b2r,b2c,b3r,b3c,b4r,... % The method uses three thresholds for red,green and blue blocks.
[b1r,b1c,b2r,b2c,b3r,b3c,b4r,... % given the size of rectangle (matrix end points), it split into four
avg=avgofmatblks(mat,i,j,w,h) % finds average of different blocks of input matrix
drawquadblocks(S) % draw square quad blocks of quadtree in eight basic colors.
fillrect_ulwh(ul,w,h,varargin... % fill the rectangle region specified by upper left corner width
flag=ispowerof2(n)
rgbimgnew =padrgbtomakepowof2... % if required then add padvalue (defualt 0)
var=converttoclass(var,type)
main.m
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from Quadtree decomposition (Encoding) and Decoding of RGB Image by Dr. Murtaza Khan
Quadtree decomposition (Encoding) and Decoding of RGB Image of size M-by-N-by-3.

var=converttoclass(var,type)

% % converte input arguent 'var' to class specified in 'type'.
% % conversion should be possible by MATLAB conversion functions.
% % Following conversion types are allowed
% % int8
% % uint8
% % int16
% % uint16
% % int32
% % uint32
% % int64
% % uint64
% % single
% % double

function var=converttoclass(var,type)

if (strcmp(type,'int8'))
    var=int8(var);
elseif(strcmp(type,'uint8'))
    var=uint8(var);
elseif(strcmp(type,'int16'))
    var=int16(var);
elseif(strcmp(type,'uint16'))
    var=uint16(var);
elseif(strcmp(type,'int32'))
    var=int32(var);
elseif(strcmp(type,'uint32'))
    var=uint32(var);
elseif(strcmp(type,'int64'))
    var=int64(var);
elseif(strcmp(type,'uint64'))
    var=uint64(var);
elseif(strcmp(type,'single'))
    var=single(var);
elseif(strcmp(type,'double'))
    var=double(var);
else
    disp('this type is not allowed or supported');
end
    
% % % --------------------------------
% % % Author: Dr. Murtaza Khan
% % % Email : drkhanmurtaza@gmail.com
% % % --------------------------------

Highlights from Quadtree decomposition (Encoding) and Decoding of RGB Image

Highlights from
Quadtree decomposition (Encoding) and Decoding of RGB Image