You'll need to do some manual editing to get a result like that. Don't think there is anyway to do this fully automatically. I'll let you be the judge whether manual editing, then using OCR, will be quicker than simply retyping the text. If you don't have Photoshop, get GIMP it's free. Using the rectangle select tool, click and drag to select the entire blue section. Then do Edit > Copy Do Edit > Paste as > New Layer in Place Do Colours > Invert, this will invert the selected layer, to create black text, the blue background will turn yellow (the inverse of blue). You should get a result like this: Do Colours > Components > Mono Mixer, then in the dialog that opens move the Red channel slider to lighten the yellow area Do Image > Flatten Image, then do Colours > Desaturate > Desaturate Do Colours > Curves and create a curve like this by clicking and dragging on the diagonal line. To save as an image file, do File > Export As, and set file extension to PNG. (责任编辑:) |