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3.8 Troubleshooting Scanning and Recognition


Table 1: Scanning and Recognition Troubleshooting


Problem

Probable Cause

Fix

Scanner does not operate.

Scanner drivers not installed properly.

Install WIA or TWAIN software.

Scanner not selected in SmartScore.

Ensure proper scanner driver is selected (File

> Scan Music > Choose Scanner).

Scanner not connected or not turned on.

Check cabling and power. Use scan test program if available.

“This page should be scanned at xxx dpi. Re- scan or Accept.

Staff widths not con- sistent. Music contains cue, TAB or percussion staves.

Re-scan in Smart- Score’s scanning inter- face with Auto Resolution = off.

Scanner model used does not support infi- nitely variable DPI (only scans in large increments).

Re-scan with Auto Resolution = off. Man- ually set resolution acceptable to scanner (300 to 600 dpi).

“Scanner not responding to SmartScore scanning interface when running under Mac OS 10.5 (Leopard)”

Apple made significant modifications to image acquisition module in

10.5 (Leopard).

See: www.musitek.com/ updates or faq page for fixes and workarounds.

Printed area containing music is too wide or too long to scan on a standard sized scanner.

Actual image size of the music is what counts, not the size of the paper or page.

Refer to “Scanning Issues” section of www.musitek.com/ faqs.html for work- around.

Reduce original size using photocopier.

Table 1: Scanning and Recognition Troubleshooting


Problem

Probable Cause

Fix

“Recognition failed for this page.”

Scanner set to screen resolution of 50-100 dpi.

Scan again accepting Auto-resolution set- tings for best results.

Scanner set to screen resolution of 50-100 dpi. (cont’d)

Manually set resolu- tion to 300-600 dpi. Scan again.

Page was scanned with too light a setting.

Re-scan with -30% to

-35% brightness.

Scanner was forced to create a black & white image with “dither- ing”.

Re-scan in Your Scan- ner’s interface: Greyscale / 350 dpi.

Music not fully scanned or is severely skewed.

Re-scan making sure all the music is selected. Scan music straight or use “Deskew” function.

Image too large for selected resolution.

Re-scan ensuring Auto Resolution = On.

Accept setting. If rec- ognition is poor, re- scan with Auto-Reso- lution off. Reset to 350 dpi.

Scanner hangs or crashes.

Driver conflict.

Ensure latest scanner drivers are installed.

Scan outside of Smart- Score using software that came with your scanner.

Table 1: Scanning and Recognition Troubleshooting


Problem

Probable Cause

Fix

Poor recognition results.

Missing barlines due to light obscuring right margin or to right mar- gin having been cut off during scanning.

Open image file in Image Editor. Use Select Tool to delete obscured regions and the Line Draw tool to restore barlines on right side of systems.

Image too small for selected resolution.

Scan again accepting Auto-resolution set- tings for best results.

Note stems “razor thin” due to laser print output.

Open .tif image in Image Editor and apply darker thresholding.

Handwritten or non- standard notation. Poor print.

Scan well-printed, standard-sized sheet music.

Poorly printed music.

Decrease brightness level. Find better origi- nal.

Image not straight (skewed).

Open file in Image Editor (File > Open > Image). Use Deskew tool to straighten each page.

Stafflines and note stems of canned file are broken or too thin.

Re-scan page(s) with decreased brightness setting.