Image processing result display apparatus, image processing result display method, and program for implementing the method

• US 20060082600A1
• Filed: 10/14/2005
• Published: 04/20/2006
• Est. Priority Date: 10/14/2004
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Odagawa, Masayuki
• Granted Patent: US 8,022,970 B2
• Time in Patent Office: Days
• US Class Current: 345/684
• CPC Class Codes: G09G 5/346 for systems having a bit-mapped display memory

Abstract

An image processing result display apparatus that is capable of carrying out smooth scrolling. A scrolling direction that will be designated by an operator is predicted based on image data displayed on an LCD. Image data positioned in the predicted scrolling direction is pre-read from an external storage device. Image data is generated by carrying out predetermined image processing on the pre-read image data and is stored in a main memory. A portion of image data displayable on the LCD is read from the image data stored in the external storage device or in the main memory. If image data positioned in the scrolling direction designated by the operator is stored in the main memory, the image data is read from the main memory, and image data positioned in the scrolling direction designated by the operator is generated based on the read image data, and the generated image data is displayed on the LCD.

Claims

1. An image processing result display apparatus comprising:

a first storage device that stores image data

an image processing device that carries out predetermined image processing on image data;

a display device that displays image data processed by said image processing device on a display;

a predicting device that predicts a scrolling direction that will be designated by an operator based on image data displayed on the display by said display device;

a pre-reading device that pre-reads image data positioned in the scrolling direction predicted by said predicting device, from said first storage device;

a second storage device that stores image data generated by carrying out the predetermined image processing by said image processing device on image data that is pre-read by said pre-reading device;

a reading device that reads a portion of image data displayable by said display device from the image data stored in said first storage device or in said second storage device; and

a scrolling device that is operable when image data positioned in the scrolling direction designated by the operator is stored in said second storage device, to cause said reading device to read the image data from said second storage device, generate image data positioned in the scrolling direction designated by the operator, based on the read image data, and causes said display device to display the generated image data.

2. An image processing result display apparatus as claimed in claim 1, further comprising a determining device that is operable when text data is contained in the portion of image data read from said first storage device by said reading device, to determine a writing direction of text based on the text data, and wherein said predicting device predicts the scrolling direction that will be designated by the operator, based on the writing direction of the text determined by said determining device.

3. An image processing result display apparatus as claimed in claim 2, wherein said determining device determines whether the writing direction of the text is a horizontal direction or a vertical direction, and said predicting device predicts that the operator will designate scrolling in the horizontal direction when it is determined by said determining device that the writing direction of the text is the horizontal direction, and predicts that the operator will designate scrolling in the vertical direction when it is determined by said determining device that the writing direction of the text is the vertical direction.

4. An image processing result display apparatus as claimed in claim 1, further comprising a determining device that determines a display configuration when image data stored in said first storage device is displayed on the display, and wherein said predicting device predicts the scrolling direction that will be designated by the operator, based on the display configuration of the displayed image data determined by said determining device.

5. An image processing result display apparatus as claimed in claim 4, wherein said determining device determines whether the display configuration is a horizontally elongated configuration or a vertically elongated configuration, and said predicting device predicts that the operator will designate scrolling in a horizontal direction when it is determined by said determining device that the image data has a horizontally elongated configuration, and predicts that the operator will designate scrolling in a vertical direction when it is determined by said determining device that the image data has a vertically elongated configuration.

6. An image processing result display apparatus as claimed in claim 1, wherein said second storage device has a faster image data reading speed than that of said first storage device.

7. An image processing result display apparatus as claimed in claim 1, wherein said first storage device stores compressed image data and said image processing device carries out expansion as the predetermined image processing on the compressed image data pre-read from said first storage device.

8. An image processing result display method comprising:

an image processing step of carrying out predetermined image processing on image data;

a display step of displaying image data processed in said image processing step on a display;

a predicting step of predicting a scrolling direction that will be designated by an operator based on image data displayed on the display in said display step;

a pre-reading step of pre-reading image data positioned in the scrolling direction predicted in said predicting step, from a first storage device that stores image data;

a storage step of storing image data generated by carrying out the predetermined image processing in said image processing step on image data that is pre-read in said pre-reading step, in a second storage device;

a reading step of reading a portion of image data displayable on the display in said display step from the image data stored in said first storage device or in said second storage device; and

a scrolling step of causing said reading step to read the image data from said second storage device, generating image data positioned in the scrolling direction designated by the operator, based on the read image data, and causing said display step to display the generated image data on the display, when image data positioned in the scrolling direction designated by the operator is stored in said second storage device.

9. A program for causing a computer to execute an image processing result display method comprising:

an image processing step of carrying out predetermined image processing on image data;

a display step of displaying image data processed in said image processing step on a display;

a predicting step of predicting a scrolling direction that will be designated by an operator based on image data displayed on the display in said display step;

a pre-reading step of pre-reading image data positioned in the scrolling direction predicted in said predicting step, from a first storage device that stores image data;

a storage step of storing image data generated by carrying out the predetermined image processing in said image processing step on image data that is pre-read in said pre-reading step, in a second storage device;

a reading step of reading a portion of image data displayable on the display in said display step from the image data stored in said first storage device or in said second storage device; and

a scrolling step of causing said reading step to read the image data from said second storage device, generating image data positioned in the scrolling direction designated by the operator, based on the read image data, and causing said display step to display the generated image data on the display, when image data positioned in the scrolling direction designated by the operator is stored in said second storage device.