How can I convert from image file to bit image data as clear as possible?
For image data(picture), if you just change the file format to mono color BMP by using application such as MS paint or other simple picture tool, the image data will not be clear. We recommend to convert the file format with dithering method by Adobe Photoshop or other free software. Below right file is ditheringconverted, and left file is simple converted file by MS paint.