Merging Gaussian patterns exception.

[MvGulik]

from: https://github.com/jcupitt/nip2/issues/60#issuecomment-274765826 (and reply)

Merging separate Gaussian patterns, with identical settings, generate a plain grey noise image. instead of resembling some old analogue colour TV noise, like this:

• A1, A2, A3: Pattern_images_item.Noise_item.Gaussian_item.action
• A4: Object_assemble_item.action [A1,A2,A3]

Simple (nip2) workaround's: (just in case)

• Use slightly different 'Mean' or 'Deviation' setting for the used Gaussian_item's.
• Or of course: 3x width Gaussian, Chop, (group_to_list), Object_assemble.

[MvGulik]

Update on nip2 - 8.5.0 version. OS: Windows XP 32-bit.

Merging separate Gaussian patterns seems to have a slight oddity to it. (Initial Gaussian pattern seems to be missing some data)

When initially trying to add separate Gaussian patterns, into a single sRGB image, it still generated a visual gray scaled image (maintained in saved+reloaded workspace). But after changing the Gaussian setting it will start to generate a visual colored image (also maintained in saved+reloaded workspace). Manual changing the changed Gaussian settings back to there default. Will continue to generate a visual colored image, unlike with pre 8.5.0 versions.

Initial setup:

• New workspace.
• A1: "Pattern_images_item.Noise_item.Gaussian_item.action"
• A2: "Pattern_images_item.Noise_item.Gaussian_item.action"
• A3: "Pattern_images_item.Noise_item.Gaussian_item.action"
• A4: "A1 ++ A2 ++ A3"
• A5: (optional) "Colour_convert_item.sRGB_item.action B2"

Gaussian settings change:

• Changing the Gaussian 'Mean' setting for A1, A2 and A3 from 128 to 127.