The Lasso Mask. Yes, I've read the Help on this but it's pretty thin on description about how it works and no examples. I'm familiar with the other masks (except Magnetic). I've played with it but it doesn't seem to do anything useful. Can anyone explain how/when/why it's used - because I'm baffled?
The lasso tool is a waste of toolbar space.
IMO, all of the masking tools behave poorly, especially when compared to photoshop.
Here's a short guide.
The Lasso Mask Tool is similar to the Freehand Mask Tool but has a slight automatic advantage: it enables you to instantly select well-defined areas of color by adjusting the Tolerance value on the Property Bar, which controls sensitivity (see below).
Higher tolerance values reduce the color sensitivity, enabling you to select a wider array of color. Surround the area you wish to select, and double-click to end the session. In the example below, a hang glider on a blue sky background is easily selected with a tolerance value of 20.
I hope it helps
OK. I get it now. It relies on high contrast and, as in your example, a solid background. Otherwise, it's a bit hit and miss, depending on the tolerance. No wonder I couldn't get it to work. I think your example is probably the only real use for it. But many thanks for the reply Carolyn.
It is extremely limited, working semi ok with highly contrasted images. The magnetic aspect has erratic behaviors that leave me saying WTF.
I have complained about this and other masking bugs\short comings for years to no avail, solution, use photo-shop for all masking needs.
If you're looking for a masking tool I tried and bought AKVIS, there is a learning curve but it's worth the effort. It's a dedicated masking tool and can't be compared with image editors like Photo-PAINT, PhotoShop, Affinity, Gimp or anything but a dedicated mask tool.
I'm picky about masks and only use a few in any image editor, rectangle for cropping, the brush for critical mask shapes and I use the path tool and create a mask to path when that perfect straight edge is needed in a premium quality manner.
Most of my critical masking is done for architectural publications or museums.