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目录:
文字识别(OCR)
文字识别(OCR)目前在多个行业中得到了广泛应用,比如金融行业的单据识别输入,餐饮行业中的发票识别, 交通领域的车票识别,企业中各种表单识别,以及日常工作生活中常用的身份证,驾驶证,护照识别等等。 OCR(文字识别)是目前常用的一种AI能力。
OCR识别SDK功能
- 方向检测
- 图片旋转
- 文字识别
运行OCR识别例子
1. 文字方向检测:
- 例子代码: OcrDetectionExample.java
- 运行成功后,命令行应该看到下面的信息:
[INFO ] - Result image has been saved in: build/output/detect_result.png
[INFO ] - [
class: "0", probability: 1.00000, bounds: [x=0.073, y=0.069, width=0.275, height=0.026]
class: "0", probability: 1.00000, bounds: [x=0.652, y=0.158, width=0.222, height=0.040]
class: "0", probability: 1.00000, bounds: [x=0.143, y=0.252, width=0.144, height=0.026]
class: "0", probability: 1.00000, bounds: [x=0.628, y=0.328, width=0.168, height=0.026]
class: "0", probability: 1.00000, bounds: [x=0.064, y=0.330, width=0.450, height=0.023]
]
2. 文字方向检测帮助类(增加置信度信息显示,便于调试):
- 例子代码: OcrDetectionHelperExample.java
- 运行成功后,命令行应该看到下面的信息:
[INFO ] - Result image has been saved in: build/output/detect_result_helper.png
[INFO ] - [
class: "0 :1.0", probability: 1.00000, bounds: [x=0.073, y=0.069, width=0.275, height=0.026]
class: "0 :1.0", probability: 1.00000, bounds: [x=0.652, y=0.158, width=0.222, height=0.040]
class: "0 :1.0", probability: 1.00000, bounds: [x=0.143, y=0.252, width=0.144, height=0.026]
class: "0 :1.0", probability: 1.00000, bounds: [x=0.628, y=0.328, width=0.168, height=0.026]
class: "0 :1.0", probability: 1.00000, bounds: [x=0.064, y=0.330, width=0.450, height=0.023]
]
3. 图片旋转:
每调用一次rotateImg方法,会使图片逆时针旋转90度。
- 例子代码: RotationExample.java
旋转前图片 | 旋转后图片 |
---|---|
2. 文字识别:
再使用本方法前,请调用上述方法使图片文字呈水平0度方向。
- 例子代码: LightOcrRecognitionExample.java
- 运行成功后,命令行应该看到下面的信息:
[INFO ] - Result image has been saved in: build/output/ocr_result.png
[INFO ] - [
class: "你", probability: -1.0e+00, bounds: [x=0.319, y=0.164, width=0.050, height=0.057]
class: "永远都", probability: -1.0e+00, bounds: [x=0.329, y=0.349, width=0.206, height=0.044]
class: "无法叫醒一个", probability: -1.0e+00, bounds: [x=0.328, y=0.526, width=0.461, height=0.044]
class: "装睡的人", probability: -1.0e+00, bounds: [x=0.330, y=0.708, width=0.294, height=0.043]
]
帮助
添加依赖lib - aais-ocr-lib-0.1.0.jar: