Microscope Contrast / Brightness¶

The Virtual Microscope supports a few configuration options regarding the addition of noise to generated images.

Parameter	Description
`AdjustContrast`	Enable or disable adjusting contrast and brightness
`Contrast`	Allows the microscope contrast to be adjusted, larger than 1 increases it, less than 1 decreases it
`Brightness`	Add or subtract from the intensity of the final image, positive values brighten, negative values darken
`ContrastRandomAmount`	Random range to multiply the contrast by for variation between images
`BrightnessRandomAmount`	Positive/negative amount that brightness can be varied between images

Example

AdjustContrastContrastBrightnessContrastRandomAmountBrightnessRandomAmount

Enable or disable the whole contrast/brightness adjustment step.

Setting AdjustContrast to False results in the following image:

Default Render Example

EMConfig.AdjustContrast = False

Likewise, setting it to True will result in the following image: Default Render Example

EMConfig.AdjustContrast = True

Contrast allows the darkest darks and brightest brights to be exaggerated or muted.

Setting it to 0.3 will result in the following image: Default Render Example

EMConfig.Contrast = 0.3

Likewise, setting it to 2.0 will result in the following image: Default Render Example

EMConfig.Contrast = 2.0

Brightness just provides an offset to the colors in the final image.

Setting it to -50 will result in the following image: Default Render Example

EMConfig.Brightness = -50

Likewise, setting it to 50 will result in the following image: Default Render Example

EMConfig.Brightness = 50

Amount to vary the contrast between images by.

Setting it to 0.5 will result in the following image: Default Render Example

EMConfig.ContrastRandomAmount = 0.5

Likewise, setting it to 0.1 will result in the following image: Default Render Example

EMConfig.ContrastRandomAmount = 0.1

This value specifies how much to randomize per-image brightness changes.

Setting it to 80 will result in the following image: Default Render Example

EMConfig.BrightnessRandomAmount = 80

Likewise, setting it to 20 will result in the following image: Default Render Example

EMConfig.BrightnessRandomAmount = 20

This documentation is provided by BrainGenix, a division of Carboncopies Foundation R&D. BrainGenix is a platform focused on advancing the field of whole-brain-emulation and computational neuroscience. BrainGenix is part of the CarbonCopies Foundation, a 501(c)3 non-profit organization dedicated to researching and promoting whole brain emulation. Learn more about CarbonCopies at https://carboncopies.org. For any queries or feedback regarding BrainGenix projects or documentation, please write to us at braingenix@carboncopies.org.