The image will be converted into pure black and white using a threshold, and then the resulting image will be converted into text art using Braille Unicode characters.
This determines the pre-processing that is applied to the image before thesholding it into a pure black and white image. Certain modes work best for certain types of images. If the resulting dot art looks bad, try another mode, or adjust some settings.
← make it smaller
more detailed →
A larger value produces higher-resolution text art, but note that wide dot art will be distorted by line wrapping if copy-pasted into places that aren't wide enough. So ideally you should choose a size that is big enough to show all the important details, but no bigger.
Threshold range: to
The threshold value (between zero and one) is the cut-off greyscale which decides whether a pixel is made black or white. Several versions of the dot art will be created within this range of thresholds.
← make it darker
make it lighter →
This adjusts the "cut-off" value at which the pixels become white or black. You should adjust it if the overall result has too much black or too much white.
← fewer lines
more lines →
Move this up to make line detection more sensitive. A high value means many subtle lines in the image will be detected. If it's too high, you may see lots of messy dots and marks in the output image.
← thinner lines
thicker lines →
Use this slider to thicken the detected lines.
Higher values will increase the contrast of the image, which can help with thresholding. Only used in non-line-art mode. A value of 1 does nothing.
If the result doesn't look good, adjust the settings above and try again.