This program will convert a 24-bit bmp (the most common variant) and convert it to a 16-bit bitmap.
1. Choose the 24-bit bmp you wish to convert
2. Choose the destination directory and convert.
3. Put the bmp on an SD-card and use DmTftLibrary to display the images on your display.
The image is only 2/3 of the original size and because most embedded displays/drivers uses 16-bit color, the picture quality will be the same.
Most embedded TFT uses the 16-bit 565 format and support the top-bottom write order.
a, The MCU does not need to convert the 24-bit to 16-bit 565, this is already done.
b, If the source format is already in correct order, a faster algorithm for reading the data can be used.
c, There is less data to read (because the image is only 2/3 of an original size)
Compared to raw picture data there are several advantages:
a, It has meta data about the format, size, how it is stored etc. With raw data, the program must already know this.
b, It is a standard so it can be viewed directly in most viewer (although not all viewer )
c, Can create and edit the images in advanced photo editing programs like photoshop.
Have to be a 24-bit bitmap with row order bottom-top. This is by far the most common format.
A file with the same image information will be created:
This file can be read by many programs, but not many programs can create this file. Photoshop is one of the programs which can create it.