hello sir!! i am getting an error at a line for uncompression in spiht algorithm.

error in spiht algorithm

Geoff Hayes 2014-11-19

Tanvi - please describe the algorithm that you are using. Is this something from the File Exchange (and if so, provide a link to it). Also, please copy and paste the entire error message that you are observing, including the line (or lines) of code that you are executing that generates the error.

Tanvi 2014-11-20

编辑：Geoff Hayes 2014-11-20

在 MATLAB Online 中打开

clc;
clear all;
i1=imread('t1.jpg');
i2=rgb2gray(i1);
option='c';
[cr,bpp]=wcompress(option,i2,'i2.wtc','spiht','maxloop',12);
option='u';
Xc=wcompress(option,'i2.wtc');
delete('i2.wtc');
figure(1)
imshow(i2)
imageview(Xc)
error:- ??? Subscript indices must either be real positive integers or logicals.
Error in ==> wtc_spiht>wtc_spiht_dec at 524
                                Signific_MAT(idx_CHILD+d_PIX_Plan) = ...
Error in ==> wtc_spiht at 23
    case 2 , [varargout{1:nbout}] = wtc_spiht_dec(varargin{:});
Error in ==> wtcmngr at 98
        [varargout{1:nbout}] = funHDL('dec',WTC_Struct,stepFLAG);
Error in ==> wcompress at 452
        X_decoded = wtcmngr('read',inputFile,stepFLAG);
Error in ==> cmp3 at 8
Xc=wcompress(option,'i2.wtc');

NANDITA SHARMA 2020-11-20

You can add i1=imresize( i1, [256 256]), then run the code. I hope it will successfully run now. 'spiht' runs on square matrix. may be for that reason you are getting the error.

KALYAN ACHARJYA 2020-11-20

In this case the number of rows and columns of image must be a power of two, though, the post is quite old.

error in spiht algorithm

4 个评论
显示 2更早的评论隐藏 2更早的评论

回答（0 个）

类别

产品

标签

Community Treasure Hunt

error in spiht algorithm

4 个评论 显示 2更早的评论 隐藏 2更早的评论

回答（0 个）

类别

产品

标签

另请参阅

Community Treasure Hunt

4 个评论
显示 2更早的评论隐藏 2更早的评论