ocr tesseract Bad Access

Question

我有这段代码：

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];

这很好用。

但是，如果我更改图像以查看UIImageVIew的图像，则无效（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 sholud仅允许UIImage。所以你应该将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];