A digital signal processor, which is dedicated to the PS-CCD (Progress
ive Scan type CCD), is developed. The DSCP1 (Digital Still Camera Proc
essor 1) adopts a new pixel interpolation algorithm which takes an ave
rage of two mean pixel values from neighboring 4 pixels and an individ
ual color matrix before gamma control in order to provide the higher i
mage quality. DSCP1 also provides a scan conversion from the progressi
ve scan to the interlace scan type image without requiring a specific
video memory to achieve a moving picture function.