This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"
| #import <Foundation/Foundation.h> | |
| typedef void (^NSManagedObjectContextFetchCompleteBlock)(NSArray* results); | |
| typedef void (^NSManagedObjectContextFetchFailBlock)(NSError *error); | |
| @interface NSManagedObjectContext (NSManagedObjectContext_blocks) | |
| -(void)executeFetchRequestInBackground:(NSFetchRequest*) aRequest | |
| onComplete:(NSManagedObjectContextFetchCompleteBlock) completeBlock |