以下のコードは matlab で実行されていません。私はmatlabで無名関数を試しています.この行で何が問題なのか教えてください:
Inv_Y_Quant = blockproc(BB,[8 8], InvQuant);
関連するコードは次のとおりです。
clear all
clc
I = imread('cameraman.tif');
% convert it to double
I = im2double(I);
% "Trim by 128"
I = I-128;
% Generate the DCT matrix
T = dctmtx(8);
% Generate Function handler for DCT
MyFun1 = @(block_struct) T * block_struct.data * T';
% BlockProcess the DCT the function for 8 by 8 blocks
B = blockproc(I,[8 8],MyFun1);
% Form the Quantization matrix
Q = [ 16 11 10 16 24 40 51 61
12 12 14 19 26 58 60 55
14 13 16 24 40 57 69 56
14 17 22 29 51 87 80 62
18 22 37 56 68 109 103 77
24 35 55 64 81 104 113 92
49 64 78 87 103 121 120 101
72 92 95 98 112 100 103 99];
% now generate function handler for the quantization
MyFun2 = @(block_struct)block_struct.data ./Q;
% perform the quantization
BB = blockproc(B,[8 8],MyFun2);
InvQuant = @(block_struct)round(block_struct.data.*Q);
Inv_Y_Quant = blockproc(BB,[8 8], InvQuant);
InvDct = @(block_struct)dct_matrix'*block_struct.data*dct_matrix;
Z = blockproc(Inv_Y_Quant, [8 8], InvDct);
Z = Z+128;
figure, imshow(Z)
Z = uint8(Z);
figure, imshow(Z)
%imwrite(Z, 'Mar7.tif');
%b = imread('Mar7.tif');
%imshow(b)