Search found 9 matches

by dranakan
2013-08-07T23:11:50-07:00
Forum: Bugs
Topic: convert(PDF=>PNG) is extremely slow on Windows,fast on Linux
Replies: 24
Views: 47827

Re: convert(PDF=>PNG) is extremely slow on Windows,fast on L

Hi,

We get also slow process with Windows (XP, Seven, ...). It's more 2x slower than on a Linux.

Code: Select all

convert -density 156 -threshold 51% file.pdf +adjoin file.gif
What can I do to improve speed on Windows ?
by dranakan
2010-05-06T00:10:23-07:00
Forum: Users
Topic: Convert PDF -> Picture -> Read Barcode
Replies: 10
Views: 37966

Re: Convert PDF -> Picture -> Read Barcode

Hello, I have done other tests with other samples, sometime the barcode (same size) are not recognize. Increasing the density give not best results. For exemple : Sample_A, OK with density 184 but not with 185 Sample_B, not ok with density 185 but ok with 184. What is your advise to find the good co...
by dranakan
2010-05-04T23:11:55-07:00
Forum: Users
Topic: Convert PDF -> Picture -> Read Barcode
Replies: 10
Views: 37966

Re: Convert PDF -> Picture -> Read Barcode

All is ok...

I split PDF's (1 new PDF for each page) and all is ok.
by dranakan
2010-05-04T00:49:49-07:00
Forum: Users
Topic: Convert PDF -> Picture -> Read Barcode
Replies: 10
Views: 37966

Re: Convert PDF -> Picture -> Read Barcode [Memory use]

Hello, I am using this command. It works fine but I have some problems with large PDF... convert -density 150 -threshold 55% SOURCE.pdf +adjoin DEST.gif I have tested to scan a big PDF (130 mb, 780 pages) and it need more than 20gb... How can I decrease the quantity of memory used to do that (other ...
by dranakan
2010-01-12T07:52:07-07:00
Forum: Bugs
Topic: spurious warning when converting pdf images
Replies: 4
Views: 13706

Re: spurious warning when converting pdf images

Thank you.
by dranakan
2010-01-12T02:47:01-07:00
Forum: Users
Topic: Convert PDF -> Picture -> Read Barcode
Replies: 10
Views: 37966

Re: Convert PDF -> Picture -> Read Barcode

Hello, Thank you el_supremo. I test the export in .jpg and in .gif. My test file has 69 barcodes (qrcodes from 1.8x1.8 cm and scan with a Scan Station 500 in 200 DPI in OCR). To read all barcodes, the command with JPG need a density of 160 and with GIF a density of 150. IM version 6.2.8 03/31/08 Q16...
by dranakan
2010-01-11T09:45:10-07:00
Forum: Users
Topic: Convert PDF -> Picture -> Read Barcode
Replies: 10
Views: 37966

Re: Convert PDF -> JPG -> Read Barcode

Thank you el_supremo :-) >>It decoded it with no problem at all Zbar is able to read from PDF but the quality of detection is not very good. Try (if you want) this one : http://www.megaupload.com/?d=ZYECDWZ7 (PDF scan in OCR 200 DPI) This is 20 qrcode and zbar is able to recognize 5. zbarimg Test1.8...
by dranakan
2010-01-11T07:29:05-07:00
Forum: Bugs
Topic: spurious warning when converting pdf images
Replies: 4
Views: 13706

Re: spurious warning when converting pdf images

Hello,

I have the same problem...

Are there an option to disable it ?

Code: Select all

-quiet
doesn't work for this.

Thanks
by dranakan
2010-01-10T23:54:30-07:00
Forum: Users
Topic: Convert PDF -> Picture -> Read Barcode
Replies: 10
Views: 37966

Convert PDF -> Picture -> Read Barcode

Hello, My goal is to read some barcode (qrcode with http://zbar.sourceforge.net/) printed on sheets. I am using a scanner (creating PDF) and the powerful ImageMagick to convert PDF to JPG. Process : [On a sheet one barcode] -> [Scan 200 DPI] -> [PDF] -> [JPG] -> [Read barcode with Zbar] The barcode ...