I am getting the error - Undefined function 'showPointCloud' for input arguments of type 'uint8' . How can this error be removed?

Question

Bhupendra Ninania 2015-7-4

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/228311-i-am-getting-the-error-undefined-function-showpointcloud-for-input-arguments-of-type-uint8-h

回答： Dima Lisin 2015-7-7

vid = videoinput('pointgrey', 1, 'F7_RGB_1280x960_Mode3');
frame=getsnapshot(vid);
leftim=frame(:,:,3);
centerim=frame(:,:,2);
rightim=frame(:,:,1);
leftim=imresize(leftim,0.5);
rightim=imresize(rightim,0.5);
centerim=imresize(centerim,0.5);
[J1, J2] = rectifyStereoImages(leftim,centerim,nParamsSmall);
dispMap2 = disparity(J1,J2,'Method', 'BlockMatching', 'DisparityRange', [0 128]);
   marker_idx = (dispMap2 == -realmax('single'));
        dispMap2(marker_idx) = min(dispMap2(~marker_idx));
       %figure; imshow(mat2gray(dispMap2));
   imshow(dispMap2, [0, 64]);
colormap('jet');
point3D = reconstructScene(dispMap2, nParamsSmall);
% Convert from millimeters to meters.
point3D = point3D / 1000;
% Plot points between 3 and 7 meters away from the camera.
z = point3D(:, :, 3);
maxZ = 7;
minZ = 3;
zdisp = z;
zdisp(z < minZ | z > maxZ) = NaN;
point3Ddisp = point3D;
point3Ddisp(:,:,3) = zdisp;
showPointCloud(point3Ddisp, J1, 'VerticalAxis', 'Y',...
'VerticalAxisDir', 'Down' );
xlabel('X');
ylabel('Y');
zlabel('Z');

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2015-7-4

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/228311-i-am-getting-the-error-undefined-function-showpointcloud-for-input-arguments-of-type-uint8-h#answer_184994

That is puzzling. To have that happen, point3Ddisp would have to be uint8, which would mean that point3D would have to be uint8 which would mean that reconstructscene() would have had to return uint8 which disagrees with the documentation which indicates that reconstructscene must return single or double.

Are you certain the code is what you show here?

In any case, showpointcloud was added in R2014b; which version of the Computer Vision toolbox are you using?