| 摘要 |
<p>A method carried out in an image processing system in which images of documents are captured by an image capture device, such as a video camera, comprising: (a) displaying successive images captured by the video camera, each image being defined by greyscale image data and containing text matter, (b) receiving a first user input (mouse button click) defining the start of a selection and a first position within the displayed image, (c) in response to the first user input, freezing the displayed image, (d) determining the skew angle of text matter with respect to the field of view of the video camera, (e) receiving at least one further user input (further button click; drag of cursor), including a final user input (mouse button release), defining the end of a selection, and for the or each further user input, (f) determining, using the skew angle determined in step (d), the position, shape and dimensions of a selection element in dependence upon at least said first position, and (g) displaying the selection element superimposed on said frozen displayed image. The selection element may be a rectangle, or a selection vlock highlighting one or more words of text. <IMAGE></p> |
