for changing the Color Look Up Table
New documentation: Threshold Sliders
You move any color band in any of the sliders by dragging the left, right or middle portion of the band. Dragging the middle of the band moves the band without changing its length.
A slider will snap to and work on the front image, unless the Slider /Lock to Image, No Jump command is used:When the cursor enters the slider, it switches to the front image window and moves underneath it. The title bar of the slider will change to show the new window when a slider band is moved..When locked, the above does not take place - the slider remains working on its current window, and remains in whatever position you have placed it.
Note about image cubes: Sliders no longer work directly on cube images (data cubes) - there are bugs. Extract the slice you are looking at to an image window, and use the slider on that.
The threshold slider is used for making masks from gray level images. Areas of interest selected by the slider are shown in red. The resulting mask (which you may not choose to display using the Thresholds button in the slider, but which Lispix uses internally) gives the corresponding red pixels the value of 1 in the mask. Elsewhere the mask is zero.
This example shows a real valued image. The values range from 0 to 0.46 - use Info / Sizes & Limits. The pixel values between 0.1337 and 0.3665 are shown in red.
The red band covers 44% of the range of the pixel values.
The percentage of image pixels that are red or selected is 5.33.
- Make mask Makes a mask image - white (1) corresponds to red areas and black (0) to the rest.
- Bandpass Makes a gray level image of only the red pixels. Other pixels are black, or zero.
- Print Pct Area Lists the thresholds, red pixel count and percent of image pixels that are red.
- Open Blob Tool A convenience for opening a new Blob Tool.
All Colorizer Sliders
Window button (all CLUT sliders)
- lock window: Slider will work on current window, whether or not it is the front image window.
- unlock window Turns lock off. This is the default state.
- select group Makes slider work on a group of windows rather than a single window.
- pop windows Brings the windows that the slider is working on to the front.
G! and C! buttons
- g! Toggle slider color(s) on and off.
- C! Apply slider color(s).
The g! and C! buttons are handy for rapidly switching slider colors on and off, or for switching between effects of two sliders.