ocr tesseract访问错误

Question

我有这样的代码：

Tesseract* tesseract = [[Tesseract alloc] initWithLanguage:@"eng"];
tesseract.delegate = self;

[tesseract setVariableValue:@"0123456789ABCDEFGHIJKLMNÑOPKRSTUVWXYZabcdefghijklmnñopqrstuvwxyz" forKey:@"tessedit_char_whitelist"]; //limit search
[tesseract setImage:[UIImage imageNamed:@"image1.jpg"]]; //image to check

[tesseract recognize];

这可以很好地工作。

但是，如果我更改图像以查看UIImageVIew的图像，则不起作用(EXC_BAD_ACCESS)：

Tesseract* tesseract = [[Tesseract alloc] initWithLanguage:@"eng+ita"];
tesseract.delegate = self;

[tesseract setVariableValue:@"0123456789ABCDEFGHIJKLMNÑOPKRSTUVWXYZabcdefghijklmnñopqrstuvwxyz" forKey:@"tessedit_char_whitelist"]; //limit search
[tesseract setImage:self.imageview.image]; //image to check

[tesseract recognize];

你知道这是错的吗？

Answer 1

Tesseract应该允许UIImage only.So您应该将Imageview图像转换为UIImage，然后执行。请尝试代码。

Tesseract* tesseract = [[Tesseract alloc] initWithLanguage:@"eng+ita"];
tesseract.delegate = self;

[tesseract setVariableValue:@"0123456789ABCDEFGHIJKLMNÑOPKRSTUVWXYZabcdefghijklmnñopqrstuvwxyz" forKey:@"tessedit_char_whitelist"]; //limit search
UIImage *imageFromImageView = self.imageview.image
[tesseract setImage:imageFromImageView ]; //image to check

[tesseract recognize];