Basic Measurements with Dataset

You can compute statistical properties, such as the minimum and maximum intensity values, entropy, weighted centers of mass, and others, that correspond to the selected image data and the discrete objects, or connected components, within a multi-ROI. These measurements are shown in the Compute Measurements dialog, shown below, and are described in the following table.

Basic measurements with dataset

In this case, you need to choose the dataset from which the scalar values will be extracted, as shown below. You should note that only datasets with the same shape as the selected multi-ROI will be available in the drop-down menu.

Basic measurements with dataset
Measurement	Description	Unit
Entropy	Is a histogram-based descriptor that is a measure of information content based on the local histogram shape. In image processing entropy might be used to classify textures, a certain texture might have a certain entropy as certain patterns repeat themselves in approximately certain ways. A component with low entropy is more homogenous than a component with high entropy. Likewise, a vector with relatively "low" entropy is a vector with relatively low information content. A vector with relatively "high" entropy is a vector with relatively high information content. Note Refer to https://en.wikipedia.org/wiki/Entropy_(information_theory) for more information about entropy.	none
Min Intensity	Indicates the minimum voxel value found for each discrete object in the multi-ROI.	none
Max Intensity	Indicates the maximum voxel value found for each discrete object in the multi-ROI.	none
Mean Intensity	Indicates the mean value of all voxels found for each discrete object in the multi-ROI.	none
Variance Intensity	Indicates the variance of all voxel values found for each discrete object in the multi-ROI.	none
Std Dev Intensity	Indicates the standard deviation of all voxel values found for each discrete object in the multi-ROI.	none
Weighted Center of Mass X/Y/Z	Indicates the X, Y or Z coordinate of the weighted center of mass. Note The center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero. If the object has uniform density, it will be located at the centroid. If not, the weighted position coordinates of the distributed mass defines its coordinates. X-Y locations are described in the world coordinate system.	default units
Weighted Center of Mass X/Y/Z Index	Indicates the X, Y, or Z voxel index of the weighted center of mass.	none
Position of Minimum Value X/Y/Z	Indicates the X, Y, or Z coordinate of the minimum value within each object.	default units
Position of Maximum Value X/Y/Z	Indicates the X, Y, or Z coordinate of the maximum value within each object.	default units
Index of Minimum Value X/Y/Z	Indicates the X, Y, or Z voxel index of the minimum value within each object.	none
Index of Maximum Value X/Y/Z	Indicates the X, Y, or Z voxel index of the maximum value within each object.	none