Append Low-Resolution Data

Overview

This application takes an existing dataset and appends to it one or more low-resolution versions of the data. Each low-resolution data set is scaled down a factor of 2 in x and y from the previous set. The z-resolution of the low-resolution data can also be scaled down.

Enter the dataset to which you want to append low-resolution data in the first line. The next line will then display the x, y, and z sizes of the data. The following line will display the number of resolutions and z-scaling factor currently in effect for the data set. Enter the desired number of resolutions and z-scaling factor in the # of Resolutions and Z Scaling fields respectively. Then press the DoIt button to append the low resolution data.

Topics

Overview | # Resolutions | Z Scaling | Limitations | Command Line

Related Priism Topics

Priism


# of Resolutions

The text field next to this button shows the number of resolutions to store. Allowed values are integers from 1 to n where 2^(n-1) is less than or equal to the number of pixels in x and y in the dataset.

Topics

Overview | # Resolutions | Z Scaling | Limitations | Command Line


Z Scaling

The text field next to this button shows the number by which the low-resolutions sets are scaled down in their z resolution. Allowed values are integers from 1 to n where n^(# of resolutions - 1) is less than or equal to the number of z sections in the dataset.

Topics

Overview | # Resolutions | Z Scaling | Limitations | Command Line


Limitations

This application can reduce the amount of low-resolution data that appears to be present in a file but can not decrease the actual size of the file.

Topics

Overview | # Resolutions | Z Scaling | Limitations | Command Line


Command Line

The syntax for invoking AppendRes from the command line is

    AppendRes dataset nres zfactor

where dataset is the name of the file (or image window number) to modify, nres is the total number of resolutions desired, and zfactor is the z downsampling factor.

Topics

Overview | # Resolutions | Z Scaling | Limitations | Command Line