Answered
superimpose points on image
Hi Milenko, One solution is to display the image (using etiher imshow, imagesc...), call "hold on", then plot the points at t...

6 years ago | 0

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Answered
How to rotate a plane in 3D around arbitrary point ?
Hi, Maybe you can decompose the procedure in two steps. First you apply the linear part of the transform to the normal vecto...

6 years ago | 0

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Answered
How do i calculate hessian matrix for an image?
Hi, you need to compute second derivatives in each direction, using something like: [gx, gy] = gradient(double(img)); [g...

6 years ago | 4

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Answered
How to extract the ROI using impoly?
Hi, You should use either imcrop, or impoly. Using imcrop, you can select a rectangular region of interset. By the way, th...

7 years ago | 0

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Answered
HOW TO FIND THE DIAMETER FOR THE IRREGULAR SHAPE OF AN IMAGE
Hi, in the image processing toolbox there is a function "regionprops" that gives you the equivalent diameter of a particle. Y...

7 years ago | 0

Answered
how to select a particular portion in am image automatically?
Hi, using imcrop you can also specify the coordinates of the box. Then you do not have to click. But you have to know the pos...

7 years ago | 0

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Answered
How to save triangulation mesh as a volume?
Hi, If your definition of volume is a 3D binary matrix/image, I would suggest using the polygon2Voxel tool from Dirk-Jan Kroo...

7 years ago | 1

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Answered
Plotting 3d Sphere with specific radius
Hi, maybe by specifying the radius as a scaling factor: surf(x*r+a, y*r+b, z*r+c); axis equal;

7 years ago | 3

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Answered
removing some connected component
Hi Selim, if your input is a label image, you can use the following syntax: img(img == ind) = 0; This will detect wh...

7 years ago | 1

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Answered
i couldn't understand convex area
Hi Selim, the 'convexArea' property corresponds the area of the convex hull of the region. The convex hull of a region is the...

7 years ago | 2

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Answered
Plotting an Ellipse
Hi, Maybe the best way to draw an ellipse is to use its parametric form: % compute points corresponding to axis-oriented...

7 years ago | 0

Submitted


image ellipsoid 3D
Inertia ellipsoid of a 3D grayscale image

7 years ago | 2 downloads |

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double2rgb
Converts an array of double (2D or 3D) to an RGB image using specified colormap

8 years ago | 5 downloads |

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Submitted


imOverlay
Add colored markers to an image, that can be 2D or 3D, grayscale or color.

9 years ago | 3 downloads |

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imHistogram
Histogram of 2D/3D grayscale or color images

9 years ago | 3 downloads |

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