JPH0196768A - Image processor - Google Patents

Abstract

PURPOSE:To increase the speed of image processing by applying an inverting process, a density converting process, etc., to input picture data in parallel with each other and performing the selective output of said processes in accordance with the selection signal pointing an optional area of an image. CONSTITUTION:The input image data obtained through a terminal 10 are supplied in common to image processing circuits 111-11n. These image processes includes an inverting process, a density inverting process, a non-converting process, etc. Thus such different processes are applied to the image data in parallel with each other. A selection signal which instructs the selection of an optional area of a selection circuit 13. The circuit 13 selects either one of those picture data outputted from circuits 111-11n in response to said selection signal and produces the output picture data to output this through a terminal 14. Thus the image processing speed is increased and furthermore a temporary memory place is not needed.

Description

[Detailed Description of the Invention] (Summary) An image processing device that processes digital image information, capable of performing n3J image processing, and capable of sharing input image data with the purpose of eliminating the need for cl space. a plurality of image processing circuits that perform mutually different processing on the input image data in parallel, and outputs of the plurality of image processing devices in response to a selection signal that instructs selection of an arbitrary region in the image. and a selection circuit that switches and selects one of the image data to obtain output image data.

(Industrial Application Field) The present invention is image processing]! l! Regarding the device, image processing I! that processes digital image information! Regarding iI equipment 2.

Digitally represent image information and use a computer or dedicated image processor]! 1. ! Digital image processing using AH has been conventionally performed.

This kind of image processing is a must! High speed is desired.

[Conventional technology]

Conventionally, in image processing using a dedicated processing circuit, a single process is performed for each image.

For example, when extracting an arbitrary area from - images and inverting the part of this arbitrary area that is equal to or higher than a certain 8a degree value, in the first processing step, extract an arbitrary area from the input image data and The data and the extracted image data are each stored in a temporary storage location.

Next, in a second processing step, the extracted image data of an arbitrary area is read out and supplied to an inversion processing circuit, where only the portion having a density value above a certain value is inverted and stored in a temporary storage location.

Further, in a third processing step, the input image data and the image data of the arbitrary area subjected to the inversion process are read out and supplied to a synthesis processing circuit, and the arbitrary area of the input image data is replaced with the image data subjected to the inversion process and output.

[Problem that the invention seeks to solve]

The above-mentioned conventional device requires multiple processing steps for one image, is slow, and requires a poetic memory location. The present invention has been developed in view of the above points, and an object of the present invention is to provide an image processing device that can perform high-speed image processing and does not require a temporary storage space.

[Means for solving problems]

FIG. 1 shows a block diagram of the principle of the present invention.

In the figure, the input image data from the terminal 10 is inputted to the image processing circuit 11! ~11T1 are commonly supplied.

Each of the image processing circuits 111 to 11T+ performs different processing on input image data in parallel.

A selection signal instructing selection of an arbitrary area in one image is input to the terminal 12 and is supplied to the selection circuit 13.

The selection circuit 13 selects the image processing circuit 11 according to this selection signal.
Output image data is generated by switching and selecting one of the image data output from each of Tl to Tl and outputting it from the terminal 14.

(Function) In the present invention, different processes are performed simultaneously in parallel in the image processing circuits 111 to 11?l, and the selection circuit 13 outputs an image from one of the image processing circuits 11+ to 11η according to a selection signal. Because the data is selected, all image processing is completed in a single processing step, speeding up image processing.

Also, - the temporal note W1 location is unnecessary.

〔Example〕

FIG. 2 shows a block diagram of an embodiment of the image processing apparatus of the present invention.

In the figure, input image data is supplied to a terminal 20. This input image data is digital image information in which, for example, an image as shown in FIG. 3(A) is displayed using a raster scan method, and each pixel is represented by a plurality of pits.

This input image data is image processing circuit 111-11? It is supplied to each of the I5 degree conversion processing circuits 21 to 24 as I5 degree conversion processing circuit 21-24.

Each of the density conversion processing circuits 21 and 22 converts the value of input image data into a value "O" for all pixels and outputs the value.

When the value of each pixel of the input image data is expressed by X, the II degree conversion processing circuit 23 performs the identity conversion expressed by the following formula,
Image data of the obtained value f (x) is output.

f(x)-x...(1) That is,
The m degree conversion processing circuit 23 outputs the input side axis data as is.

The density conversion processing circuit 24 performs temperature inversion processing on the input image data by conversion expressed by the following equation, and the obtained value f
Output the density inverted image data of (x).

f(x)=-x . . . ■ Image data output from each of the density conversion processing circuits 21 to 24 described above is supplied to a selector 25 as a selection circuit 13. For example, the selector 25 has terminals 26a and 26 from the system CPU.
Selection signals A and B each come in via b.

The selection signal A is a signal that represents the moving object area with the value "1" and represents the other areas with the value "ON".
This is the truck 30 and cargo 31 in the image of Figure <A), and the shaded area 32 in Figure (B) represents the moving object area.

The selection signal B is a signal that represents the inversion processing region with a value of "1°" and the other regions with a value of "0".The inversion is performed on the baggage 31 in the image of FIG. The shaded area 33 in FIG. 3C represents the reversal processing area.

The selector 25 selects the image data output from the density conversion processing circuit 23 when the selection signals A and B have the value "10", and
When the value is "00", the image data output from the processing circuit 21 is selected; when the value is "01", the image data output from the processing circuit 22 is selected. Select and transfer the selected image data to terminal 27.
Output from.

Therefore, the output image data from the terminal 27 is as shown in Fig. 3 (D
) shows a truck 30 and a load 34 (matte-textured portion) with an inverted density.

In this way, in the above example! One-time conversion processing circuit 21-2
4 are carried out in parallel, and the selector 25 only selects the output image data of each of the processing circuits 21 to 24, so all processing is completed in a single processing step, resulting in high-speed processing. - Temporal storage is also unnecessary.

Note that one of the mtu conversion processing circuits 21 and 22 is removed,
When the selection signal QA of the selector 25 has the value "0", the configuration may be such that image data from the other processing circuit is selected, and the present invention is not limited to the above embodiment.

〔Effect of the invention〕

As described above, the image processing apparatus of the present invention speeds up image processing and eliminates the need for a temporary storage space, making it extremely useful in practice.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of an image processing apparatus according to the present invention, and FIG. 2 is a block diagram of an embodiment of the apparatus according to the present invention. FIG. 3 is a diagram for explaining signals of each part of the apparatus shown in FIG. 2. In FIG. 1, 11+ to 111 are image processing circuits, 13 is a selection circuit, 21 to 24 are density conversion processing circuits, and 25 is a selector. shows. Patent Applicant: Fujitsu Neyashi Co., Ltd. f) IR Rigobu 092 Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] A plurality of image processing circuits (11_1 to 11_n) that are commonly supplied with input image data and perform mutually different processing on the input image data in parallel, and a selection signal that instructs selection of an arbitrary region in the image. An image processing device comprising: a selection circuit (13) that switches and selects any one of the image data output from each of the plurality of image processing circuits (11_1 to 11_n) to obtain output image data.