improve image quality of extracted frames

ultramango / gear360pano

Simple script to create equirectangular panorama by stitching images from Samsung Gear 360

MIT License

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improve image quality of extracted frames #36

Closed evertvorster closed 6 years ago

evertvorster commented 7 years ago

Hi there. Ffmpeg uses standard compression for the extracted .jpg files from the video. Since we will be doing transforms on it, it is better to use a highest quality possible. Please consider changing run_command ffmpeg -y -i "$1" "$FRAMESTEMPDIR/$IMAGETMPL" to run_command ffmpeg -y -i "$1" -q:v 2 "$FRAMESTEMPDIR/$IMAGETMPL"

Kind regards, Evert

ultramango commented 7 years ago

Hi!

Thanks for the tip. Will do in next pack of improvements (I'm thinking about having options for speed and quality).

Note 1 to self: -q:v N is alias for -qscale:v N, when N lower the quality goes up. Note 2 to self: speed: 148 s (current) vs 154 s (with N = 2), 131 frames video.

ultramango commented 6 years ago

Included in latest release (again - please verify, many change and I might have omitted something).