ssureshtronics
Newbie level 6
Hi all,
Is there anybody suggest me how to display jpeg images from the SD card to 10.4" TFT LCD driven by my 8-bit microcontroller?
I done the SD Interface and also the LCD interface using SSD1963 controller, its working well and also I tried with the BMP images by reading the BMP header and display the direct RGB value to my LCD and displayed the images of resolution 640X480. Now I'm in a state of reading the JPEG header, I got the header information and DQT,DHT tables also, what I need is:
1. How to process the Huffman table (there are 4 tables, 2 for DC and 2 for AC)
2. How can the DQT table values used to process the DHT table.
3. How can i get the Y,Cb,Cr values from the scan data.:?:
I go throughed all the possible documents to my extend, none of them explained directly. I'm cleared that image was splitted into 8X8 block.
PLease suggest me a right way if any body found that. Thanks with hope
Is there anybody suggest me how to display jpeg images from the SD card to 10.4" TFT LCD driven by my 8-bit microcontroller?
I done the SD Interface and also the LCD interface using SSD1963 controller, its working well and also I tried with the BMP images by reading the BMP header and display the direct RGB value to my LCD and displayed the images of resolution 640X480. Now I'm in a state of reading the JPEG header, I got the header information and DQT,DHT tables also, what I need is:1. How to process the Huffman table (there are 4 tables, 2 for DC and 2 for AC)
2. How can the DQT table values used to process the DHT table.
3. How can i get the Y,Cb,Cr values from the scan data.:?:
I go throughed all the possible documents to my extend, none of them explained directly. I'm cleared that image was splitted into 8X8 block.
PLease suggest me a right way if any body found that. Thanks with hope
