Ios ocr错误访问

我有以下代码：

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];

这个很好用

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

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您知道这是错误的吗？

Tesseract sholud仅允许UIImage。因此，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];

请参阅以下链接：

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];