How many pixels can you fit on there? They are 4cm squares.
Drag a photo from your computer onto this panel:
Or, use this form to select one:
Select an area of your photo to encode.
What colour do they look in digital photographs? If you are using Megapixel-approved Edding pens, just select that. The "Ideal" pen setting will assume your pens are "pure" red, green and blue and skip calibration.
Your data is ready.
This has been scaled up to match the preview image.
This is made up of small pixels in the colour of your pens, to give an idea what the final Mini-Megapixel will look like. Adjust the brightness slider until this looks good.
This table should copy-paste into spreadsheet software such as Excel. Each square denotes the number of cells you should colour in each colour. (Other cells should be coloured black.)
Depending on your pens and image, the colour correction step can reccomend colouring more squares than there are, or fewer than zero. Those cases are represented by the red bars in this histogram. If the red bars are high (and the preview image looks bad) then you should adjust the brightness slider down.