AmScope MU USB2.0, User Manual, Page: 111 / 147

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MU Series (Windows)
User’s Manual
Process Menu Tools
Filter
There are various option parameters available, depending on which filter is selected.
If the “Erode,” “Dilate,” “Open,” or “Close” filters are selected, the parameters available will refer to the kernel
size and shape, such as :
2x2 Square - Uses a 2x2 square kernel.
3x1 Row - Uses a 3x1 row kernel configuration.
3x3 Cross - Uses a 3x3 cross shaped kernel.
5x5 Circle - Uses a 5x5 circle shaped kernel.
7x7 Circle - Uses a 7x7 circle shaped kernel.
11x11 Circle - Uses an 11x11 circular kernel, which is a three-pass filter using a 5x5 circle, another 5x5 circle,
and a 3x3 cross.
The “Passes” parameter sets how many times the filter will process over the image sequentially.
Note: Circular kernels are effective on round objects (cells, grains, etc) because their circular configuration pre -
serves the circular shape of objects better than square ones when processing.
If the “Tophat,” “Well,” or “Gradient” filters are selected, the parameters will also relate to kernal size and
shape, with the following options:
3x3 - Uses a 3x3 square kernel
5x5 - Uses a 5x5 square kernel
7x7 - Uses a 757 square kernel
If the “Watershed,” “Thinning,” or “Distance” filters are selected, the parameters will alter the threshold of
each filter. The “Threshold” slider allows the user to enter a percentage value from 1-100 that specifies the in -
tensity value of image binarization. The image is presented in gray value, and the percentage and below num -
ber of gray values will be set to black, whereas the rest will be set to white. 100% would turn everything white,
0% would turn everything black.
Kernel - The final tab for the “Filters” menu are the kernel files for morphological and convolution style filters.
This menu allows advanced users to alter the kernels to customize the filter use. Note that this is for advanced
users only--if unsure how any of these work, we recommend leaving this section alone, as deleting or modify -
ing a core kernel without creating a new kernel will require a reinstallation to fix.