07/29/2010 (4:36 am)
Bulk Processing / Enhancement of 24 Bit RGB TIFF Images Best answer on the web
media in Asia)for archival purpose. Scanning will be done thru
Planetary Type Scanners. typical size of the manuscript is 1" x 11"
and are in dark yellow to light yellow color with scripts appearing in
medium black color. We will lay-up 12-16 leaves on the scan-bed and
get uncompressed 300 dpi, 24 Bit, RGB TIFF files. We will slice them
as sigle leaf (master archival file) and then compress to TIFF G4 CCITT format.
This compressed files will have to cleaned up for:
- dust removal
- clean wormmarks
- sharpening
- color adjustment
- brightness & contrast
-gamma correction
- noise
- water marks removal
- scratch marks
Idea is to enhance the look of the images so that reading is clear. We
can group similar colored images to get consistancy. Our target is to
process 10,000 images per day. Can you recommend ways & means to
accomplish this task ?
http://f1.pg.briefcase.yahoo.com/bc/olympusinfotek/vwp2?.tok=bcqXOMUBwwF9lrHC&.dir=/palmleaves&.dnm=DSC_0002.jpg&.src=bc
Let me know in case of problem.
By the way, are there any batch image sorter ? Idea is to sort images based on color variations say: light yellow, medium yellow, light brown to dark etc,. Once automatically sort this, we can run bacthes to adjust brightness, contrast, sharpen, skew etc.,
"The Crop and Straighten Photos command helps you make separate image files from multiple images in a single scan. For best results, you should keep an eighth of an inch between the images in your scan, and the background (typically the scanner bed) should be a uniform color with little "noise". Images with clearly delineated outlines work best with the Crop and Straighten Photos command. "
So if instead of the scanner-lid you put some bright blue or green sheet (or any color clearly different from the color of the leafs) over your leafs, this built-in function should help you out.
good luck :)
1. Master Archival File 24 Bit RGB uncompressed at 300 dpi
2. Cleaned TIFF 24 Bit RGB compressed and for color we have limted choices as LZW.
3. JPEG at 150 dpi for internet viewing
Since we will be grouoing these images for scanning we want a s/w that can slice them in to several single files. We tried thru PhotoShop 5.5 via ACTION but we are facing problems since teh exact location of each image can never to correct.
Ideally we need an application that will trace or outlines each palmleaf images then cut them off and save to desiginated folder.
Thanks
http://www.imagemagick.org/
You might want to hire a programmer and a computer graphic artist to help you define your requirements and build a small program that can use Image Magic to automate much of the processing.
1) divide your scanner glass in 12 strips
2) put the leafs in between
3) scan the 12 leafs to separate files with one click.
4) go back to 2) with same settings
Alternatively you can do the slicing in Photoshop. In Photoshop (*the* image editing program) you can define a whole series of changes to the images and then apply them to all the images in your folder (yes, even if 10000). Definately keep your unprocessed images, they will always be most important.
It looks like you will be doing hundreds of thousands of them, so I would hire a team to perform the boring part in parallel ! I'll check back here to see if you have more questions.
As a document examiner I also have programmed specialized image processing plugins to Photoshop (or equivalents) myself.
1. We will test Imagemagik tool.
2. I am contacting the scanning company to explore options of dividing scanner glass in 12 or 20 strips thru their capture software. However the plam leaves are of different sizes ranging from 1" - 2" in height, and 9" to 21" in length. This could complicate slicing process.
3. Alternatively we are interested in working thru photo-shop plug-in so that slicing can be done as a batch process.
4. Here is the link to see an JPG file of palm leaf manuscript. This is laid up as 4 leaves to one image.
http://f1.pg.briefcase.yahoo.com/bc/olympusinfotek/vwp2?.tok=bcqXOMUBwwF9lrHC&.dir=/palmleaves&.dnm=DSC_0002.jpg&.src=bc
5. Also we wish to know if there are any tools that would convert these sliced uncompressed TIFF to TIFF CCITT G4 files. Our deliverables are uncompressed as well as edited / cleaned TIFF G4 files.
Thanks for the help
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