raspistill preview always blurry - Raspberry Pi Forums

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raspbistill shows preview on monitor until picture taken. shows blurry image until snaps picture. amd tjem sharp 1/2 second exits.


raspistill -k -roi 0.4,0.2,0.2,0.2 -w 1600 -h 1200 -ss 300000 -o pix.jpg

solar3000 wrote:raspbistill shows preview on monitor until picture taken. shows blurry image until snaps picture. amd tjem sharp 1/2 second exits.


raspistill -k -roi 0.4,0.2,0.2,0.2 -w 1600 -h 1200 -ss 300000 -o pix.jpg
roi digital zoom, not @ centre of image. settings cropping 20% of image sensor, or x5 digital zoom.

default, preview in raspistill runs sensor @ 1296x976, you're cropping out 260x195 pixels , blowing them 1024x768 on display - rubbish.

on capture, switches full 5mpix (2592x1944) mode, you're blowing 520x390 pixels make preview frame - going sharper (but still pretty rubbish). you're taking same 520x390 make 1600x1200 capture, isn't going great either.

having tiny roi going produce compromised images. ideally need relocate camera somewhere closer subject.


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