JPH01184571A - System for editing image data in document processor - Google Patents

Abstract

PURPOSE:To improve efficiency for image data editing by storing both read density data and picture density data, performing the edit processing of both data at the time of performing the image data editing in a document, and displaying both data by switching on a screen by a user. CONSTITUTION:Only the read density data with a sentence, a graphic, a table, and graph data are stored in document data as image data, and the picture density data is generated at the time of starting the edit of a document. At the time of displaying a picture, two modes of the display 11 of the picture density data and the display 11' of the read density data are provided, and the change of the mode can be performed easily by an interactive operation. And at the time of performing the image data editing, the processings of both the read density data and display density data are performed simultaneously, and the results are displayed 11 and 11' again by using the display density data and the read density data, respectively, by the display modes.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a document processing device in which a user uses a graphic terminal to work and edit documents including images, and in particular to a document processing device for efficiently editing image data. Concerning methods for obtaining high-quality printing results.

[Conventional technology]

Data read from an image input device and print output data are 200 to 400 dpi (dotper 1n
Graphic displays on document processing devices typically display approximately 80 to 100 pixels.
There are many dpi and low density ones. There are two methods for editing image data in such an apparatus:

First, a part of the read density data is displayed on the screen and edited while scrolling.

The other method is to generate data by reducing the read density data to the screen density, and edit the data while displaying it on the screen.

The former is the method adopted by Xerox Corporation's J-8tar.

The latter is the method adopted by Canon's EZPS.

Note that related methods of this type include, for example,
There is Japanese Patent Application Laid-Open No. 60-77271.

[Problem to be solved by the invention]

The conventional editing methods described above each have the following problems.

First, in the former method, since only a portion of the image data can be displayed on the screen, it is impossible to edit data that cannot be displayed on the screen. For example, if it is difficult to give editing instructions such as "moving" or "enlarging/reducing" a part of an image without looking at the entire document, editing efficiency will decrease.

On the other hand, with the latter method, detailed editing of image data is not possible. Furthermore, line drawings and characters may become illegible due to pixel ``missing'' or ``bulky J'' during display data generation.

An object of the present invention is to store both reading density data and screen density data in order to overcome the drawbacks of the conventional method described above, and when editing image data in a document, edit processing of both data is performed so that the user can display the data on the screen. By making it possible to switch and display both types of data with simple operations,
The objective is to improve image data editing efficiency.

[Means to solve the problem]

In order to achieve the above object, in the document processing system according to the present invention, image data is stored in a document file along with text, figures, tables, and graph data, and only read density data is generated, and screen density data is generated at the start of document editing. do. When displaying the screen, there are two modes: screen density data display and read density data display, and the mode can be easily changed by interactive operation. When editing image data, both read density data and display density data are processed simultaneously, and the results are redisplayed using display density data or read density data, respectively, depending on the display mode.

[Effect]

Editing efficiency of image data is improved by simultaneously processing display density data and read density data and providing two display modes. Furthermore, by using reading density data during printing, high quality printing results can be obtained.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of a computer system for implementing the present invention. The contents of a document 1 are read by an image reading device 2 such as an image scanner, converted into a digital signal, and stored in a signal processing section 3. Screen density data is generated by reducing the read data. Furthermore, both display density data and read density data are processed based on instructions from the keyboard 4 and mouse 5 for inputting various commands and data, and the results are displayed on the screen 6. It also includes an image storage section 7 for storing edited reading density data and an output section 8 for printing.

FIG. 2 explains a switching method between reading density data display and screen density data display.

The document data 9 is classified and stored according to the nature of the data, such as sentences, tables, graphs, figures, and images.
It is developed on the virtual screen 10 through a general-purpose graphic interface such as RE-GKS. On the other hand, for image data, both read density data and screen density data are developed on the virtual screen, and when displaying document data on the screen, if the display mode is "Screen density display mode" 11. The vector data and screen density image data developed on the virtual screen are used to develop the data on the screen.

Furthermore, in the "reading density display mode"11', by displaying on the screen using vector data and reading density image data, it is possible to switch between the two modes.

FIG. 3 is a flowchart format for specifically showing the image data editing/printing process. First, a command input from an input device is interpreted (step 301), and it is checked whether the command is for printing a document (step 302). If it is "r document printing", it is possible to obtain a high quality print result by printing using the reading density image data and vector data that have been subjected to one editing process (step 303).

If the command is other than "print document", the position, size, and address information of the read density data and display density data to be processed are calculated from the coordinates on the virtual screen specified by the input device. In the present invention, first, editing processing of reading density data from these pieces of information is performed (step 304). Next, check whether the instructed command is "enlarge/reduce" (step 305), and if so, read the read density data to be processed to ensure consistency between the read density data and the screen density data. The screen density data is generated through reduction processing, and the data is combined with the data before processing (step 306). In addition, for operations other than "enlargement/reduction" such as "r movement", "copy", "reverse", "rotation", "filling", etc., even if the screen density data is processed independently from the read density data, both data will be consistent. Therefore, the screen density data is processed based on the above processing target information (step 307). In order to display the processing results of this command on the screen, the display mode is "Reading density display mode".
or "screen density display mode", and if it is the former, re-display processing is performed using the read density data (step 309), and if it is the latter, display processing is performed using the screen density data. (Step 310).

〔Effect of the invention〕

As explained above, according to the present invention, when a user instructs an image editing procedure, the user can easily select the image editing procedure according to the editing purpose.
Because it is possible to switch the display mode,
The editing efficiency is improved.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a computer system showing an embodiment of the present invention, FIG. 2 is a diagram showing a method for switching the display mode of document data in the present invention, and FIG. 3 is a diagram showing a method for editing image data in the present invention. It is a flowchart which shows a processing procedure. 1... Original, 2... Input section, 3... Signal processing section,
4... Keyboard, 5... Mouse, 6... Display section, 7... Storage section, 8... Output section, 9... Document data, 10... Virtual screen, 11...・Screen 1.12...
・Screen 2°Call Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. When editing image data with a document processing device that creates or edits a document containing a mixture of images, text, figures, tables, graphs, etc., it is possible to combine print data (high density) and data reduced for layout display ( low density).
When executing an image editing command, both data are processed simultaneously, and when editing the overall size, position, angle, etc. of the image data, command processing is performed while displaying the layout display data on the screen, and detailed editing is performed. An image data editing method in a document processing device characterized in that, when performing reprint data, command processing is performed while displaying a part of reprint data on a screen.