For comparison reasons, it may be desirable to adjust the intensity scale of multiple Image windows at the same time.
To change the intensity scale of all open Image windows simultaneously:
Select View | Scale All Windows from the softWoRx main menu. The Scale All Windows window is displayed.
Similar to the Image Scaling window, the right side of the Scale All Windows window includes a line with three nodes (or handles) that graphically represent the intensity scale. Use the mouse to click and drag the white handles on the line as follows:
To change the minimum or maximum scale value, click and drag on the left or right handle.
To slide the scale range to the left or right, click and drag on the center handle.
As you move the handles, the images displayed in all of the currently open Image windows change accordingly. Changing the minimum and maximum intensity values changes brightness and contrast by mapping all 256 color shade values to a larger or smaller range of data. Data values higher than the maximum value are assigned the brightest shade. Data values lower than the minimum value are assigned the dimmest shade.
To change the intensity scale distribution, change the shape of the curve by clicking anywhere on the histogram (except on one of the handles) and dragging the mouse up or down.
To improve contrast at the low end of the intensity range, increase the slope of the curve at the left side of the graph.
To improve contrast at the high end of the range, increase the slope of the curve at the right side of the graph.
Changing the scale distribution increases the contrast at one end of the data range and decreases it at the other end.
The Display Min field, shows the display scale low threshold.
The Display Max field, shows the display scale high threshold.
Alternatively, you can enter the desired display exponent in the Display Exp field. An exponent value affects how values between the minimum and maximum display intensity values are determined.
Use the Restore Channel button to restore the selected channel to its original intensity scale.
Use the Restore All button to restore all channels to their original intensity scales.
Press Done when finished with Scale All Windows.