我使用以下方法在我的项目中添加tesseract训练数据
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Set up the tessdata path. This is included in the application bundle
// but is copied to the Documents directory on the first run.
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentPath = ([documentPaths count] > 0) ? [documentPaths objectAtIndex:0] : nil;
NSString *dataPath = [documentPath stringByAppendingPathComponent:@"tessdata"];
NSFileManager *fileManager = [NSFileManager defaultManager];
// If the expected store doesn't exist, copy the default store.
if (![fileManager fileExistsAtPath:dataPath]) {
// get the path to the app bundle (with the tessdata dir)
NSString *bundlePath = [[NSBundle mainBundle] bundlePath];
NSString *tessdataPath = [bundlePath stringByAppendingPathComponent:@"tessdata"];
if (tessdataPath) {
[fileManager copyItemAtPath:tessdataPath toPath:dataPath error:NULL];
}
}
setenv("TESSDATA_PREFIX", [[documentPath stringByAppendingString:@"/"] UTF8String], 1);
// init the tesseract engine.
tesseract = new tesseract::TessBaseAPI();
tesseract->Init([dataPath cStringUsingEncoding:NSUTF8StringEncoding], "eng");
}
return self;
}
收到以下错误
Error opening data file /Users/frf/Library/Application Support/
iPhone Simulator/6.1/Applications/686F83C8-526C-47FB-9F02-
E44FBE69F60B/Documents/tessdata/eng.traineddata
未在文档目录中复制tessdata。我该怎么办?
请建议编辑我的上述代码......
答案 0 :(得分:2)
我认为tessdata目录不存在。 在用户/文档目录中。
答案 1 :(得分:2)
这段代码对我有用......
if (tessdataPath) {
[[NSFileManager defaultManager] createDirectoryAtPath:[documentPath stringByAppendingPathComponent:@"/tessdata"] withIntermediateDirectories:YES attributes:nil error:nil];
[fileManager copyItemAtPath:tessdataPath toPath:dataPath error:NULL];
}
谢谢大家.... @ Volker @Vaisakh
答案 2 :(得分:1)
因为您的文档文件夹不包含语言文件。您必须将捆绑添加到文档文件夹中的语言文件保存。在启动tesseract之前保存该文件.Tesseract * tesseract = [[Tesseract alloc] initWithDataPath:@“tessdata”语言:@“eng”];请参阅答案here