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STM32F4 DCMI and OV9655 Partial Image Read

Question asked by oztoprak.mert on Jul 7, 2015
I started using STM32F4DIS-BB and DIS-CAM module with STM32F4Discovery board. Examples found on web displays camera image on LCD through DMA transfer. But in my project, I will not use LCD. 320x240 pixel image consumes 150kb RAM, it is a big problem. To overcome this issue, i would like to read image partially ( maybe line by line) and store it on SD card. Is this possible? How can i request image as lines from DMA?
Sorry, i am a beginner. I need your help.
Thank you