Patent Application Titled “Display Control Apparatus That Displays Preview Image, Control Method Therefor, And Storage Medium” Published Online (USPTO 20190199869)

Technology Business Daily |

2019 JUL 12 (NewsRx) -- By a News Reporter-Staff News Editor at Technology Business Daily -- According to news reporting originating from Washington, D.C., by NewsRx journalists, a patent application by the inventor Kamata, Yutaro (Yokohama-shi, Japan), filed on , was made available online on .

The assignee for this patent application is Canon Kabushiki Kaisha (Tokyo, Japan).

Reporters obtained the following quote from the background information supplied by the inventors: “Field of the Invention

“The present invention relates to a display control apparatus, a control method therefor, and a storage medium.

“Description of the Related Art

“An MFP which is a display control apparatus displaying a preview image is known. For example, the MFP performs image processing such as color correction and brightness adjustment on an image to be printed and displays a processing result image obtained as a result of the image processing as a preview image before starting printing (see, Japanese Laid-Open Patent Publication (Kokai) No. 2013-77961). This enables a user to see if effects achieved by the image processing line up with his or her intention before starting printing. To see the effect achieved by the image processing, for example, the user may compare an image before the image processing (hereafter referred to as an ‘initial image’) with the processing result image. As a technique to easily compare the initial image with the processing result image, there has been proposed, for example, a technique that displays a composite image of the initial image and the processing result image as a preview image. The user is allowed to operate four control points placed at respective four corners of the preview image. Straight lines connecting the control points are used as boundary lines in the preview image. In the preview image, for example, one of areas split by the boundary lines is comprised of a part of the initial image, and the other one is comprised of a part of the processing result image. The user is able to see differences in detailed parts of the preview image before and after the image processing while changing the positions of the boundary lines.

“However, when straight lines connecting control points are used as boundary lines in a preview image as described above, the plurality of control points needs to be operated so as to change positions of the boundary lines, which takes a lot of time and effort.”

In addition to obtaining background information on this patent application, NewsRx editors also obtained the inventor’s summary information for this patent application: “The present invention provides a display control apparatus and a control method therefor which enable a user to easily determine positions of boundary lines in a preview image, as well as a storage medium.

“Accordingly, the present invention provides a display control apparatus that displays a preview image based on processing results of image processing performed on an initial image, comprising a first image generating unit configured to generate a first image based on the initial image or a processing result of first image processing performed on the initial image, a second image generating unit configured to generate a second image based on a processing result of second image processing performed on the initial image, a display control unit configured to control display of the preview image based on the first image and the second image; and a receiving unit configured to receive an operation performed by a user on a control point for determining a position of at least one boundary line in the preview image, wherein the display control unit controls a display process for the preview image, in which at least a part of the first image and at least a part of the second image are displayed based on the boundary line the position of which is determined by the control point.

“The present invention enables the user to easily determine boundary lines in a preview image.

“Further features of the present invention will become apparent from the following description of exemplary embodiments (with reference to the attached drawings).”

The claims supplied by the inventors are:

“1. A display control apparatus that displays a preview image based on processing results of image processing performed on an initial image, comprising: a first image generating unit configured to generate a first image based on the initial image or a processing result of first image processing performed on the initial image; a second image generating unit configured to generate a second image based on a processing result of second image processing performed on the initial image; a display control unit configured to control display of the preview image based on the first image and the second image; and a receiving unit configured to receive an operation performed by a user on a control point for determining a position of at least one boundary line in the preview image, wherein the display control unit controls a display process for the preview image, in which at least a part of the first image and at least a part of the second image are displayed based on the boundary line the position of which is determined by the control point.

“2. The display control apparatus according to claim 1, wherein the number of control points provided for the preview image is one.

“3. The display control apparatus according to claim 2, wherein in a case where the control point lies inside an area of the preview image, the preview image is divided into four split areas based on two boundary lines crossing each other at the control point, one of the split areas adjacent to each other in the preview image being comprised of a part of the first image, and the other one being comprised of a part of the second image.

“4. The display control apparatus according to claim 2, wherein in a case where the control point lies on one of four sides forming an area of the preview image, the preview image is divided into two split areas based on a boundary line that is determined by the control point and is orthogonal to the one side, one of the two split areas in the preview image being comprised of a part of the first image, and the other one being comprised of a part of the second image.

“5. The display control apparatus according to claim 4, wherein in a case where the control point has moved from the one side to a side opposite to the one side, images constituting the split areas in the preview image are switched.

“6. The display control apparatus according to claim 3, wherein in a case where a predetermined operation on the preview image by the user is received, images constituting the split areas in the preview image are switched.

“7. The display control apparatus according to claim 2, wherein the user is prompted to select images constituting split areas selected by the user.

“8. The display control apparatus according to claim 2, wherein in a case where the control point lies on one of four corners forming an area of the preview image, the preview image is comprised of the first image.

“9. The display control apparatus according to claim 8, wherein in a case where the control point moves from the one of the four corners to another one of the four corners which shares a side with the one of the four corners in the area of the preview image, the preview image switches from the first image to the second image.

“10. The display control apparatus according to claim 1, wherein the receiving unit receives operations performed by the user on the control point for each of the first image processing and the second image processing.

“11. The display control apparatus according to claim 3, wherein: a third image is generated based on a processing result of third image processing performed on the initial image; a fourth image is generated based on a processing result of fourth image processing performed on the initial image; and the preview image is comprised of a part of the first image, a part of the second image, a part of the third image, and a part of the fourth image.

“12. The display control apparatus according to claim 1, wherein the control point is moved in such a manner as to follow a sliding operation performed by the user.

“13. The display control apparatus according to claim 1, wherein the control point is moved to a position at which a touch operation performed by the user has been detected.

“14. The display control apparatus according to claim 1, further comprising an operating guide notification unit configured to provide notification of an operating guide for the control point.

“15. A control method for a display control apparatus that displays a preview image based on processing results of image processing performed on an initial image, comprising: a first image generating step of generating a first image based on the initial image or a processing result of first image processing performed on the initial image; a second image generating step of generating a second image based on a processing result of second image processing performed on the initial image; a display control step of controlling display of the preview image based on the first image and the second image; and a receiving unit step of receiving an operation performed by a user on a control point for determining a position of at least one boundary line in the preview image, wherein a display process for the preview image, in which at least a part of the first image and at least a part of the second image are displayed based on the boundary line the position of which is determined by the control point, is controlled in the display control step.

“16. A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method for a display control apparatus that displays a preview image based on processing results of image processing performed on an initial image, the control method for the display control apparatus comprising: a first image generating step of generating a first image based on the initial image or a processing result of first image processing performed on the initial image; a second image generating step of generating a second image based on a processing result of second image processing performed on the initial image; a display control step of controlling display of the preview image based on the first image and the second image; and a receiving unit step of receiving an operation performed by a user on a control point for determining a position of at least one boundary line in the preview image, wherein a display process for the preview image, in which at least a part of the first image and at least a part of the second image are displayed based on the boundary line the position of which is determined by the control point, is controlled in the display control step.”

For more information, see this patent application: Kamata, Yutaro. Display Control Apparatus That Displays Preview Image, Control Method Therefor, And Storage Medium. Filed and posted . Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220190199869%22.PGNR.&OS=DN/20190199869&RS=DN/20190199869

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