Rafael flat-images PRNU estimation #41

New Issue

2024-04-08T05:20:56+02:00

Benjamin_Loison commented

2024-04-08 05:20:56 +02:00

Sky wavelet seems to show JPEG block artifacts, as the black pixels between white ones are around 8.

Sky:

JPG:

ARW to PNG:

Wall:

JPG:

ARW to PNG:

We seem to notice random noise without particular pattern.

darktable-cli arw/DSC02700.ARW test.png

for file in *.ARW; do darktable-cli $file ../png/${file//.ARW/}.png 2>&1; done | tqdm --total `ls *.ARW | wc -l | cut -d ' ' -f1`; matrix-commander -m 'Conversion finished!'

Should consider raw images.

Sky wavelet seems to show JPEG block artifacts, as the black pixels between white ones are around 8. Sky: JPG: ![np_array](/attachments/afc28e1a-10fe-4e8f-aa35-9272a8772074) ![np_array_1](/attachments/85ad6a83-a136-4264-84ca-d68b6aebf9b0) ARW to PNG: ![np_array](/attachments/dee3318e-5d27-45f6-8677-555b9e241eb8) ![np_array_0](/attachments/261ae675-92a6-46fc-a07c-2b0dd3b34a30) Wall: JPG: ![np_array](/attachments/97f9d76e-3348-449d-a5dd-d46c4772bf50) ![np_array_0](/attachments/dc147619-2a60-4db0-8e90-b759fe58f49f) ARW to PNG: ![np_array](/attachments/07890c59-3355-4d99-929d-d88ec1f7f33a) ![np_array_0](/attachments/6bf88229-3c31-45e6-9ab1-aeead11d9a65) We seem to notice random noise without particular pattern. ```bash darktable-cli arw/DSC02700.ARW test.png ``` ```bash for file in *.ARW; do darktable-cli $file ../png/${file//.ARW/}.png 2>&1; done | tqdm --total `ls *.ARW | wc -l | cut -d ' ' -f1`; matrix-commander -m 'Conversion finished!' ``` Should consider raw images.

np_array.png

697 KiB

np_array_1.png

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np_array.png

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np_array_0.png

3.1 MiB

np_array.png

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np_array_0.png

124 KiB