JPH02288985A - Information processor equipped with data reducing / enlarging function and developing function - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention is applicable to personal computers, office computers, word processors, DTP (desk top publishing), DPS (data processing systems), and other various data reduction and processing systems. Regarding the improvement of information processing devices equipped with enlargement and expansion functions, especially when high-resolution image data is mixed with character/graphic data, high-quality images can be improved when expansion involves data reduction processing. The present invention relates to an information processing device that allows data to be obtained.

In recent years, the content of text data processed by various information processing devices such as personal computers and word processors has been
It now includes not only character (text) data and graphic data, but also image data.

In this case, the driver density per unit area of image data is determined by the resolution of an image scanner, which is an image reading device.

Generally, the resolution of a CR display device that displays I/T information and a printing device that prints information on the drive 1 does not match the resolution of an image scanner that is an image reading device.

As a result, when outputting image data input from an image scanner to a display device or printing device a with a different resolution, the data is expanded after being reduced or enlarged on the page buffer of the display device or printing device. need to be done.

In this case, in the enlargement process of the image data, data collapse (missing to the driver 1) does not occur, but in the reduction process, data collapse (missing dots) may occur.

In order to prevent such a data gap 4-b in the reduction process, it is conceivable to use a method of thickening the data (processing to make the dots larger) prior to the reduction process.

That is, by performing data thickening processing and then performing reduction processing from r, it is possible to prevent the occurrence of data collapse (missing dots).

However, in the case of high-density image data, if such data is thickened, a lot of data overlaps, resulting in a large number of black dots, and as a result, the image becomes There is a possibility that the image will be distorted (resulting in pitch black data), resulting in the inconvenience of lowering the image quality.

Here, the configuration of a personal computer will be described as an example of a conventional information processing system having a data reduction/enlargement function and a data expansion function.

FIG. 5 is a functional block diagram of a conventional information processing system equipped with a data reduction/enlargement function and a data expansion function, without including an example thereof. In the drawing, 1 is an input device such as a keyboard, 2 is an image scanner, and 3 is a CPU.
4 is a memory consisting of RAM, ROM, etc., 5 is a magnetic disk which is a type of external storage device, 6 is a floppy disk which is a type of external storage device, wa is a page buffer, and 8 is a A printer and 9 indicate a display device such as a CRT display.

The functions of each part of the information processing system 1 shown in FIG. 5, for example a personal computer, are outlined as follows.

The input device is a keyboard, etc., such as IE, and is a manual means for manually inputting system startup and other commands, and necessary character information.

The image scanner 2 inputs the image and sends the image information to the computer side.

Ru.

The central processing unit 3 consists of CI) [J 8,
It has a single function that controls the entire information processing system of j'Al. .

The memory 4 stores the block [J-gram, galacta pattern data, etc.] that controls ■(AM, ■ku○M inn, I-co, nari, sis-ko), and also stores the necessary IQi data. : System child/, memory, etc.

Magnetic knob 1': (horn 51:, t, external storage device 7i
1j-te', it has a storage capacity of a human capacity.

The floppy disk 6 is also a type of external storage device.

The page buffer 7 is a buffer memory in which data to be output to the printer 8 or display device f] is stored.

The printer 8 is a thermal transfer type printing device having an electrically heated head, a thermal printer, an inkjet printer, a plunger magnet type printer, etc. Then, based on the created data, the -shi; symbol, image, etc. are printed using the dotu I-pattern.

The display device 9 is a CRT display device 1. Maya L (':
L) Consists of a display, etc., which visually displays character/numeric information and image information of documents being created and those that have been created, as well as operational and necessary guidance, etc., in a pattern of 1 to 1 every 10 screens. It is a display means.

Information processing devices of the FIY era, such as personal computers, computer computers, etc., which are equipped with data reduction/enlargement functions and expansion functions, are equipped with this function. The i:(': configuration is shown in FIG. 5.

When performing data reduction/enlargement processing, the input device 1. Image scanner 2. Character, graphic, and image data are input or read from the magnetic disk 5 and floppy disk 6 and stored in the memory 4.

Thereafter, the reduced or enlarged character, graphic, and image data are developed into a page buffer 7''.

Such reduction/enlargement processing is conventionally known and is executed by an information processing system l\ such as a personal computer shown in FIG.

To go back to the original explanation, especially when performing reduction processing, each character, figure, and image data is first enlarged to match the resolution, and then reduced and stored on the page buffer 7. When the data is expanded, as mentioned above, image data with high dot density may be enlarged to pure black data in some cases, resulting in a disadvantage that the print quality deteriorates.

This invention aims to resolve these inconveniences in conventional information processing devices equipped with data reduction/enlargement functions and expansion functions, and provides a high-speed image processing system that can handle image data with high dot density without causing image distortion. The purpose is to enable quality reduction processing.

In this invention for the purpose of and an expansion order for specifying the expansion order of each data from the memory means. and a specifying means, when the image data inputted from the image input device and character/figure data are mixed and developed, and then reduction processing is performed, the development order specifying means determines the development order of the image data. after the text/figure data has been expanded, first, the text/figure data is expanded or expanded as is without being expanded, the image data is expanded, and then each data is subjected to reduction processing. That's what I do.

Specifically, in the information processing apparatus of the present invention, when performing reduction processing to match resolutions, data thickening processing is not performed for image data with high density, and other characters/figures are After performing enlargement processing on the data,
All data is reduced.

Embodiment Next, an embodiment of an information processing apparatus having a data reduction/enlargement function and a data expansion function according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a functional block diagram showing a detailed embodiment of the main configuration of an information processing apparatus according to the present invention. The symbols in the drawing are the same as those in FIG. 5, and 4a is the character data storage area of the memory 4, 4b l:l is the graphic data storage area, 4c is the image data storage area, and 11
12 is a selection circuit, 12 is a character data development section, 13 is a graphic data development section, 14 is an image data development section, and 15 is a reduction processing section.

In the block diagram shown in FIG. 1, the selection circuit 11 is a development order specifying means, and determines the development order of each data in the character data storage area 4a, graphic data storage area 4b9, and image data storage area 4c on the memory 4. It has the function of
The image data in the image data storage area 4c is developed last.

Further, the reduction processing unit 15 has a reduction processing function for each data developed on the page buffer 7. Its configuration and operation are similar to conventional reduction processing units.

The other blocks are basically the same as those of the conventional information processing apparatus, and include a character data development section 122, a graphic data development section 132, and an image data development section 14, which have corresponding data storage areas 4a, 4b.

4c, it has a function to expand each data and a function to reduce/enlarge the data during expansion.

First, the operation of the information processing apparatus of the present invention shown in FIG. 1 during data development will be explained.

The input device f! shown in FIG. t 1 r image skill 2. Magnetic disk 5. Character, figure, and image data to be outputted are input or read from the floppy disk 6 and transferred to the character data storage area 4a, figure data storage area 4b, and image data storage area 40 of the memory 4 in FIG. Store each.

Next, by sequentially controlling the selection circuit 11, the character data expansion section 12 and the graphic data expansion section 13 are sequentially activated.
Data from the character data storage area 4a and graphic data storage area 4b of the memory 4 is developed into the page buffer 7J-.

Thereafter, the image data expansion section 14 is activated, image data is extracted from the image data storage area 4c of the memory 4, and is expanded into the page buffer 7''.

When this data expansion involves reduction processing, the character data expansion unit 1-2 and the graphic data expansion unit 13 perform thickening processing on each data, and then each data is expanded into the page buffer 7''2. .

However, the image data is not subjected to the thickening process and is expanded as it is to the page buffer 7-1;

After developing all the data into the page buffer 71-, the reduction processing unit 15 is activated to perform reduction processing on the data developed into the page buffer 7''-.

Here, character data development section 1-22 graphic data development section 1
The thickening process that the T.32 image data expansion unit 14 performs as the enlargement process will be described. Note that this thickening process is a conventionally known process.

FIG. 2 (1) and (2) show each data development section 12. ]3゜14 is a diagram explaining the concept of thickening processing performed by
(1) is a diagram showing a data development area, and (2) is a diagram showing a data area obtained by thickening processing.

In this thick processing of the data in Figure 2 (1), Figure 2 (2)
), the data development area is shifted by one dot, for example, downward or to the right, and the data in both areas are superimposed by OR processing.

The following Figures 3 (]) and (2) are diagrams showing examples of character patterns obtained by the thickening process explained in Figure 2, where (1) is the original data and (2) is downward and rightward. 11<tsu1~ indicates data that has been thickened.

Move the pattern “F” in Figure 3 (1) downwards and to the right by 1
By shifting only the dots and superimposing the data of both areas by logical sum processing, a thick pattern "F" as shown in FIG. 3(2) is obtained.

As already mentioned, such thickening processing is conventionally known.

FIG. 4 is a flowchart 1- showing the main processing flow during data expansion in the information processing apparatus of the present invention shown in FIG. In the drawings, #1 to #9 indicate steps.

In step #1, various data are stored in the character data storage area 4-a, graphic data storage area 4b2 and image data storage area 4C of the memory 4 in FIG. 1, respectively.

In step #2, it is determined whether or not it is a reduction process. This determination is made in order not to perform thickening processing on the image data when reduction processing is involved.

If it is a reduction process, the process proceeds to the next step #3, and it is determined whether or not the data to be processed is image data.

As a result of the judgment in step #3, if the image data is The processing is performed on all image data.

If it is not image data in the judgment made in step #3 above, the process advances to step #6, and the data is expanded onto the page buffer 7 as it is.

On the other hand, if it is determined in the previous step #2 whether or not it is a reduction process, if it is not a reduction process, the process proceeds to step #8.

When reduction processing is not involved, for all data,
Since only data expansion is performed, it is determined in step #8 whether or not expansion of all data has been completed.

If all the data has not been expanded (if so, the data will be expanded in the next step #9).

When all data development is completed, the flow shown in FIG. 4 ends.

As explained in detail above, in the information processing apparatus of the present invention, when image data is mixed with character/graphic data, the selection circuit 11 added as the expansion order designation means shown in FIG. 4 character data storage area 4a
, graphic data storage area 4b, image data storage area 4
The processing order of each data is controlled when each data of c is expanded onto the page buffer 7 while being reduced/enlarged.

Then, when expanding with data reduction processing, thickening processing is not performed on the image data.

In the information processing device of this invention equipped with a data reduction/enlargement function and an expansion function, when image data is mixed with character/graphic data, the image data is , instead of performing thickening processing, each data is reduced after the final expansion, so even if the image data is reduced, unlike conventional information processing devices, the image will not be distorted (purely black data). This has the excellent effect of significantly reducing the amount of image data that will result in high-quality image data.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram showing a detailed embodiment of the main configuration of the information processing apparatus of the present invention, and FIG. This is a diagram explaining the concept of thick processing performed by
(1) is a diagram showing the data expansion area, (2) is a diagram showing the data area obtained by the thick processing, and Figure 3 (1) and (2) are the character patterns obtained by the thick processing explained in Figure 2. In the figure showing an example,
(1) is the original data, (2) is a diagram showing data that has been processed to be one dot thicker downward and to the right, and FIG. 4 is a diagram showing data development in the information processing apparatus of the present invention shown in FIG. FIG. 5 is a functional block diagram showing an example of a conventional information processing system having a data reduction/enlargement function and a data expansion function. In the drawing, 1 is an input device, 2 is an image scanner,
3 is a central processing unit, 4 is a memory, 4a is a character data storage area of the memory 4, 4b is a graphic data storage area, 4
C is an image data storage area, 5 is a magnetic disk, 6 is a floppy disk, 7 is a page buffer, 8 is a printer, 9 is a display device, 11 is a selection circuit, 12 is a character data development section, 13 is a graphic data development section , 14 is an image data expansion section, and 15 is a reduction processing section. 16-1 dot broken map sweet map

Claims (1)

[Claims] It is equipped with a display device for displaying dot information, a printing device for printing dot information, an image input device for optically reading dot information, and a memory means for storing character, figure, and image data. An information processing system having a function of reducing/enlarging each data of figures and images and a data expansion function, further comprising a expansion order designation means for specifying the expansion order of each data from the memory means, When input image data and text/figure data are mixed and expanded and then reduced, the above
The order of expansion of the image data is after the expansion of the character/figure data, and first, the character/figure data is enlarged or expanded as is without enlargement, the image data is expanded, and then each data is expanded. An information processing device characterized by performing a reduction process on an image.