JPH03193026A - Image processor - Google Patents

Abstract

PURPOSE:To make an image easily visible and easily usable by eliminating the corresponding aperture mask image from an original image on which the aperture mask image is projected. CONSTITUTION:The corresponding aperture mask image A is sent to an image processing processor 1 from a mask image storage part 3. Subsequently, when an image processing for subtracting the aperture mask image A from an eyeground image is executed by the image processing processor 1, the eyeground image containing the aperture mask image A becomes the eyeground image from which the aperture mask image A is eliminated. With respect to plural eyeground images processed in such a manner, each image is synthesized and outputted to a television monitor 6. On the television monitor 6, a panoramic image having no part hidden by the aperture mask image A is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image processing apparatus that uses image processing technology to remove an aperture mask image included in an original image.

[Prior Art] Conventionally, when a panoramic image is created by pasting together multiple fundus images by electrical image processing, the aperture image A of the fundus camera is When displayed on the composite screen, the original fundus image superimposed on the aperture mask image A is hidden.

An object of the present invention is to provide an image processing device that can remove unnecessary aperture mask images from a composite image and obtain an image that is easier to see.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the image processing device according to the present invention includes a storage means for storing an aperture mask image, and a corresponding image stored in the storage means from the original image. The present invention is characterized by comprising an arithmetic processing means for removing an aperture mask image, and a combining means for combining a plurality of images from which the aperture mask image has been removed.

[Operation] The image processing device having the above-described configuration removes the corresponding aperture mask image stored in the storage means from the original image to form a composite image.

[Example] The present invention will be explained in detail based on the example illustrated in FIGS. 1 to 4.

FIG. 1 shows a configuration diagram of an image processing apparatus, 1 is an image processing processor, and this image processing processor 1 includes II
An image-powered device 2 consisting of a CCD camera attached to an IN bottom camera and an A/D converter connected to the output of the CCD camera is used to generate a plurality of aperture mask images A as shown in FIG. 2 (al, fb) in advance. Mask biography/old capital 3 with information already input, image memory 4 for recording/l multiple fundus images
, a command manual section 5 consisting of a keyboard or light bench, etc., which sends commands to the image processing processor 1, and a television monitor 6, which displays images to be processed, command options, etc., are connected.

A fundus image of the subject's eye captured by the CCD camera of the image input device 2 is converted into a digital signal by the A/D converter, and stored in the image memory 4 via the image processing processor 1. In this case, the image human-powered device 2 has a CC
]) Instead of a camera, it is also possible to use a still video or video recorder, or use a slide scanner to obtain a digital signal directly from the fundus image of a 35 mm slide that has been photographed and developed in advance. Good too.

The image processing processor 1 has a function of sequentially retrieving a plurality of fundus images stored in the image memory 4, synthesizing the plurality of fundus images by pasting them together, and subtracting the aperture mask image A. It has a function of executing the options displayed on the monitor 6 using commands input from the command input section 5 and outputting the results to an external device such as the television monitor 6 or a printer.

FIG. 3 is a flowchart showing the procedure of image processing, which operates according to a program built into the image processing processor 1. First, in step 11, the image input device 2
The fundus image is input using the image processing processor 1.
The fundus image is stored in the image memory 4 via. In step 12, it is determined whether or not the fundus image in the image memory 4 has an aperture mask image A. If the fundus image has an aperture mask image A, the process proceeds to step 13; otherwise, the process jumps to step 17. In step 13,
Look at the fundus image displayed on the television monitor 6, use the command input unit 5 to specify the shape of the aperture mask image A to be deleted, and in the next step 14 issue a command specifying the type of human-powered equipment and human-powered conditions. This is done via the input section 5. Note that by providing the image processing processor 1 with a function of extracting the aperture mask image A through binarization processing of the fundus image and a pattern matching function, and automatically recognizing the aperture mask image A in the fundus image, step 13 can be performed. The shape of the aperture mask image A may be specified automatically. In addition, the type of device may be manually specified in step 14 (in step 11, when inputting the fundus image, it may be manually input from the command input unit 5, or it may be automatically input), and the size of the aperture mask image may be specified manually. If the input conditions such as height are constant, it is possible to omit specifying the manual conditions.Also, by specifying the shape of the aperture mask image and the type of input device and input conditions, the specified conditions can be omitted. is recorded in a condition storage unit (not shown), and when continuously processing fundus images manually generated under the same conditions, the shape of the aperture mask image A is specified in step 13 and the shape of the aperture mask image A is specified in step 14.
It is possible to omit specifying the input device type and input conditions.

In step 15, an aperture mask image A is selected in accordance with the designation of the shape of the aperture mask image A and the designation of the type of manpower equipment and manpower conditions. That is, the corresponding aperture mask image A is sent from the mask image storage section 3 to the image processing processor 1. Next, in step 16, the image processing processor 1 performs image processing to subtract the aperture mask image A from the fundus image, as shown in FIG. 5(a).
, From the fundus image including the aperture mask image A shown in (b), a fundus image with the aperture mask image A shown in FIG. , in step 17, the images are combined and output to the television monitor 6. A panoramic image with no portion hidden by the aperture mask image A as shown in FIG. 4 is displayed on the television monitor 8.

In the embodiment, a fundus image is taken as an example, but it goes without saying that this may be an image having another aperture mask image.

[Effects of the Invention] As explained above, the image processing device according to the present invention can make the image easier to see and use by removing the corresponding aperture mask image from the original image in which the aperture mask image is reflected. can.

[Brief explanation of drawings]

1 to 4 show an embodiment of the image processing apparatus according to the present invention, in which FIG. 1 is a configuration diagram, FIG. 2 is a front view of an aperture mask image, FIG. 3 is a flowchart, and FIG. is an explanatory diagram of output, and FIG. 5 is an explanatory diagram of output by a conventional image processing device. Reference numeral 1 designates an image processing processor, 2 an image processing device, 3 a mask image storage section, 4 an image memory, 5 a command input section, and 6 a television monitor.

Claims (1)

[Claims] 1. Storage means for storing an aperture mask image, arithmetic processing means for removing the corresponding aperture mask image stored in the storage means from the original image, and a plurality of storage means for removing the aperture mask image from the original image. 1. An image processing device comprising: a composition means for composition of two images. 2. The image processing apparatus according to claim 1, further comprising means for selecting a suitable aperture mask image by pattern matching between an original image including an aperture mask image and an aperture mask image stored in the storage means.