JPH0523664B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an image parameter processing device in an image reading device that determines an image reading area.

Conventional Technology Generally, in order to determine an image reading area using an image parameter processing device, a two-dimensional coordinate system is considered from the physical origin of the scanner mechanism of the image reading device, and the coordinates of two opposing vertices of the document to be read are A possible method is to input values from a data input section or the like and determine the image reading area based on the coordinate values.
Use keys, digitizers, etc. However, image parameter processing devices that use this type of system need to accurately grasp the positional relationship between the physical origin and the document to be loaded, which makes it difficult to improve the accuracy of the reading position and also makes it difficult to operate. It also becomes difficult. As a method to solve this drawback, an image parameter processing apparatus has been devised, as shown in FIG. 2, which determines a reading area using a mount for mounting a document on an image reading apparatus (this is called a carrier sheet).

In FIG. 2, the carrier sheet 20 is made of paper with low elasticity and good transparency, such as a Mylar sheet, and a register mark is used to indicate the physical origin when the carrier sheet 20 is installed in the scanner mechanism of an image reading device. A + sign 21, which is said to be ``+'', a frame 22 indicating the readable range, and a scale 23 that makes it easier to read the coordinate values are printed on the sheet. A register pinhole 24 is provided for mounting. on the other hand,
A register pin that matches the register pin hole 24 is attached to the scanner mechanism of the image reading device, and when the carrier sheet 20 is attached, the physical origin of the scanner mechanism of the image reading device and the + sign 21 of the carrier sheet 20 are aligned. It's starting to match exactly. To specify an image reading area using an image parameter processing device using such a carrier sheet, paste the original onto the carrier sheet and read the coordinate values of its two vertices.
The coordinate values of the two vertices can be read by inputting with a key or by attaching the carrier sheet to a coordinate value input device such as a digitizer.

Generally, when an image is handled by a computer or the like, the amount of data is enormous. For example, if the area necessary for image processing is extracted using software, a large amount of processing time is required, which increases the load on the computer. Therefore, it is necessary for the image reading device to have a function of accurately trimming and reading the area to be processed. Further, in many cases, the output size is predetermined, and image parameter processing devices have conventionally existed that have a function of trimming and reading according to the output size.

Below, regarding the conventional image parameter processing device,
This will be explained with reference to the configuration diagram in FIG.

In FIG. 3, 30 is a parameter input means for inputting the output size, 31 is a coordinate input means for inputting the coordinate values of two opposing vertices of the original to be scanned, and 32 is the output size and the coordinates of the two points. From the value, determine the input area of the document to scan the maximum rectangular area that is similar to the rectangle formed by the output size, has the same center of gravity inscribed in a rectangular area with two point coordinate values as vertices, and scans 2 of the input area. Vertex coordinate value determining means 33 is data transfer means for transmitting the two vertex coordinate values from the vertex coordinate value determining means 32.

When performing trimming to match the output size in the vertex coordinate value determining means 32 in such a conventional image parameter processing device, if the image reading area specified by the operator is larger than the rectangular area formed by the output size, the specified The coordinate values of the two vertices of the input area are determined so that the left and right or top and bottom of the protruding portion of the image reading area are evenly cut out and read.

Problems to be Solved by the Invention However, as mentioned above, in the conventional image parameter processing device, the image reading device side cuts out the left and right or top and bottom of the protruding portion evenly and reads it, thereby also cutting out the area that is desired to be subjected to image processing. This caused inconvenience to the operator. An object of the present invention is to trim a rectangular input area specified by an operator without cutting it.

Means for Solving the Problems The present invention provides an output document size input means for inputting either the vertical or horizontal output size of the document to be output, and two opposing vertices of a rectangular area of the document to be scanned. 2-vertex coordinate input means for inputting coordinates; input document size calculation means for calculating the input document size in the vertical and horizontal directions of a rectangular area of the input document to be scanned from the 2-vertex coordinates; or output document size calculation means for calculating a similar horizontal or vertical output document size from the horizontal output document size, and data transfer means for transmitting the two vertex coordinates and the vertical and horizontal output document sizes. By providing this, the above objective is achieved.

Effects According to the present invention, with the above configuration, the output document size calculating means is configured such that the ratio of the output document size in the vertical direction to the input document size in the vertical direction is the same as the ratio of the output document size in the horizontal direction to the input document size in the horizontal direction. For example, if the output document size in the vertical direction is input, the output document size in the horizontal direction is calculated, or if the output document size in the horizontal direction is input, the output document size in the horizontal and vertical directions is calculated. By calculating and determining the vertical and horizontal output document sizes, it is possible to trim the rectangular input area specified by the operator without cutting it.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. In FIG. 1, reference numeral 10 denotes an output size input means for inputting either the vertical output size or the horizontal output size to be output on the manuscript;
Reference numeral 1 denotes a two-vertex coordinate input means for inputting the coordinates of two opposing vertices of a rectangular area of a document to be scanned, and reference numeral 12 calculates the input size in the vertical and horizontal directions of the rectangular area of the document to be scanned from the coordinates of the two vertices. Input size calculation means; 13, output size calculation means for calculating a horizontal output size or vertical output size as similar as possible from the input size and the vertical output size or horizontal output size; 14, the 2 output size;
This is data transfer means that sends vertex coordinates, vertical output size, and horizontal output size.

The operation of the above configuration will be explained below.

The coordinate values of two vertices inputted from the two-vertex coordinate input means 11, which is composed of a digitizer using a carrier sheet method, are transmitted to the input size calculation means 12, and the input size calculation means 12 outputs vertical and horizontal directions. The size is calculated and notified to the output size calculation means 13. On the other hand, the output size in the vertical or horizontal direction input by the input means 10 is also notified to the output size calculation means 13, and the output size calculation means 13
For example, if the vertical output size is input, the horizontal Calculate the output size in the direction, and if the output size in the horizontal direction is input, calculate the output size in the horizontal and vertical directions, and this value and the coordinate values of the two vertices are sent to the data transfer means 14 to read the image. transmitted to the device. In an image reading device, a reading area is determined and scanned based on the physical origin and two vertex coordinate values of the device.

As is clear from the above description, according to this embodiment, it is possible to determine and read the reading area without cutting out the rectangular input area specified by the operator.

Effects of the Invention As described above, the present invention inputs either the output document size in the vertical direction or the output document size in the horizontal direction, and scans two opposite rectangular areas of the document to be scanned.
Input the coordinates of the vertices, calculate the vertical and horizontal input document sizes of the rectangular area of the document to be scanned from the two vertex coordinates, and calculate the similarity from the input document size and the vertical or horizontal output document size. The rectangular input specified by the operator is calculated by calculating the output document size in the horizontal or vertical direction such that It becomes possible to determine and read the reading area without cutting out the area, which has a great effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an image parameter processing apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of a carrier sheet, and FIG. 3 is a block diagram of a conventional image parameter processing apparatus. 10...Output size input means, 11...2 vertex coordinate input means, 12...Input size calculation means, 1
3... Output size calculation means, 14... Data transfer means.

Claims (1)

[Claims] 1. Output document size input means for inputting either the vertical or horizontal output document size of the document to be output; and 2-vertex coordinate input means for inputting the coordinates of two opposing vertices of a rectangular area of the document to be scanned. and,
an input document size calculation means for calculating an input document size in the vertical and horizontal directions of a rectangular area of the input document to be scanned from the two vertex coordinates, and an input document size that is similar from the input document size and the output document size in the vertical or horizontal direction; An image parameter processing device comprising an output document size calculation means for calculating an output document size in the horizontal or vertical direction, and a data transfer means for transmitting the two vertex coordinates and the output document size in the vertical and horizontal directions.