BOPIXEL OPR407 Series Operating Manual page 20

GUI supports 1 bitmap and 8 bitmap. Please pay attention to matching of image
bits and vertical/ horizontal direction when adding patterns. If the added stripes do not
match the options, the projected stripes will be wrong. Stripe image formats are
available in BMP or PNG.
To add horizontal stripes to the projected image, you need to select a single
vertical stripe, that is, a 1x1080 resolution image.
Similarly, to add vertical stripes to the projection image, you need to select a
single horizontal stripe image, that is, a 1920x1 resolution image.
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