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WIP: use code from labthings-picamera2 for EXIF writing

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I've now switched to using piexif to write the EXIF tag, which
is slower - but still does not seem to work in openflexure-
stitching.
This commit is contained in:
Richard Bowman 2024-02-05 17:14:56 +00:00
parent bc8db396bf
commit a61ffbf75a
1 changed files with 6 additions and 8 deletions
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14
src/openflexure_microscope_server/things/smart_scan.py
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@ -582,19 +582,17 @@ class SmartScanThing(Thing):
processed = rggb2rgb(raw2rggb(raw_image)) / white_norm
processed[processed > 255] = 255
processed[processed < 0] = 0
img = Image.fromarray(processed, mode="RGB")
img = Image.fromarray(processed.astype(np.uint8), mode="RGB")
img.save(
os.path.join(images_folder, name),
exif=json.dumps(
{
"Exif": {
piexif.ExifIFD.UserComment: metadata_getter()
}
}
).encode("utf-8"),
quality=95,
subsampling=0
)
exif_dict = piexif.load(os.path.join(images_folder, name))
exif_dict["Exif"][piexif.ExifIFD.UserComment] = json.dumps(
metadata_getter()
).encode("utf-8")
piexif.insert(piexif.dump(exif_dict), os.path.join(images_folder, name))
save_time = time.time()
logger.info(f"Acquired {name} in {acquisition_time-capture_start:.1f}s then {save_time-acquisition_time:.1f}s saving to disk")
except Exception as e: