microfiche test images failed after uploader

[JP]

http://www.us.archive.org/log_show.php?task_id=24710213

Microfiche images taken by Mekel in Washington and FTPed to the archive were uploaded using the microFILM uploader.

identifier for the item is "fichetest3"

an excerpt from the task_log:

Running RePublisher-Preprocess BookItemOperation $Revision: 1.19 $ $Date: 2008-02-26 20:57:58 $
Executing: rm -rf /tmp/bookops/fichetest3//*
Processing /1/items/fichetest3/[e-mail]...
mflm-skewDetectGray: mflm-skewDetectGray.c:56: int main(int, char**): Assertion `8 == depth' failed.
Aborted (core dumped)

[danh (danh-archive)]

It looks like this bug is being caused because the file being processed [e-mail] is stored "in color" (space YCbCr), and so when unpacked in leptonica has depth 32 rather than 8, which the program mflm-skewDetectGray is expecting.

Solution might be to modify the program (mflm-skewDetectGray) so that it accepts color and flattens it out.

However must discuss this with Raj to see if it's halfway reasonable.

[danh (danh-archive)]

Talked to Raj about this, he said it would be a reasonable course of action (change mflm-skewDetectGray to accept "color" images). He suggested using code similar to that in scribeImageOps.c for the grayifying.