You can try at first to find the text "Gold Price" or "GBP" (if this text is always the same) And then you will know the place where that text is places, then just cut that part of image containing the text and proceed OCR to that line separately. You can also try Cuneiform: link text
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您可以首先尝试查找文本“Gold Price”或“GBP”（如果该文本始终相同）
然后你就会知道该文本所在的位置，然后只需剪切包含文本的图像部分并单独对该行进行 OCR。
您还可以尝试楔形文字：
链接文本
You can try at first to find the text "Gold Price" or "GBP" (if this text is always the same)
And then you will know the place where that text is places, then just cut that part of image containing the text and proceed OCR to that line separately.
You can also try Cuneiform:
link text
听起来你需要Engauge Digitizer（开源） - 转换显示图形或地图的图像文件的数字化软件，转化为数字。
Sounds like you need Engauge Digitizer (Open Source) - Digitizing software that converts an image file showing a graph or map, into numbers.