1. An apparatus comprising:
a unit configured to obtain image data by reading a document on which an image is printed, the image including a small dot group consisting of small dots, wherein the small dots will disappear upon duplication and wherein the small dot group has a history information area, and a large dot group consisting of large dots, wherein the large dots will not disappear upon duplication and wherein the large dot group has coordinate position information embedded therein;
an image processing unit configured to perform image processing for the duplication on the image data that is obtained;
an embedment information extraction unit configured (i) to extract the embedded coordinate position information, which shows an area on which the small dot group is dependent, using the large dot group for the image data that is obtained and (ii) to extract history information on the duplication using the small dot group;
a unit configured to generate history information that includes information on the current duplication by editing the history information that is extracted; and
a unit configured to generate image data such that, in the image data that was subjected to the image processing by the image processing unit, a small dot group having the generated history information embedded in the history information area is disposed at one or more positions indicated by the extracted coordinate position information.
2. The apparatus according to claim 1,
wherein the history information on the current duplication includes time and date information of the duplication and identification information of the apparatus that performed the duplication.
3. A method comprising:
performing the following steps using an image processing apparatus
obtaining image data by reading a document on which an image is printed, the image including a small dot group consisting of small dots, wherein the small dots will disappear upon duplication and wherein the small dot group has a history information area, and a large dot group consisting of large dots, wherein the large dots will not disappear upon duplication and wherein the large dot group has coordinate position information embedded therein;
extracting the embedded coordinate position information, which shows area where the small dot group exists, using the large dot group for the obtained image data, and extracting history information on the duplication using the small dot group;
generating history information including history information on the current duplication by editing the history information that is extracted; and
generating image data such that, in image data that has been subjected to image processing, a small dot group having the generated history information embedded in the history information area is disposed at one or more positions indicated by the extracted coordinate position information.
4. The method according to claim 1,
wherein the history information on the current duplication is identification information of the image formation apparatus.
5. A non-transitory computer-readable medium embodying a program for making a computer perform the steps of:
obtaining image data by reading a document on which an image is printed, the image including a small dot group consisting of small dots, wherein the small dots will disappear upon duplication and wherein the small dot group has a history information area, and a large dot group consisting of large dots, wherein the large dots will not disappear upon duplication and wherein the large dot group has coordinate position information embedded therein;
extracting the embedded coordinate position information, which shows an area where the small dot group exists, using the large dot group for the obtained image data, and extracting history information on the duplication using the small dot group;
generating history information including history information on the current duplication by editing the history information that is extracted; and
generating image data such that, in image data that has been subjected to image processing, a small dot group having the generated history information embedded in the history information area is disposed at one or more positions indicated by the extracted coordinate position information.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A friction stir spot joining device for softening and stirring workpieces to be joined by frictional heat generated by rotation of a pin, comprising: a stirring motor for rotating a joining tool holding the pin; a pressure application motor for linearly driving the joining tool; a pin extraction motor for causing the pin to move axially in and out of a tip end portion of the joining tool and connected to a rear end portion of the stirring motor along a common axis line to be integrated therewith; a driving unit body housing the integrated pin extraction motor and stirring motor and a direct action bearing rail therein; and a direct action bearing body fixedly attached to a side of the pin extraction motor, wherein the stirring motor is retained by the direct action bearing rail and the pressure application motor is disposed at the rear of the pin extraction motor such that the pin extraction motor and the stirring motor are simultaneously moved when the pressure application motor is driven.
2. A friction stir spot joining device according to claim 1, further including a mechanical component disposed between an output shaft side of the stirring motor and a pin holding member for enabling the transmission of the rotating force of the stirring motor and a relative movement in the axial direction between the stirring motor and the pin holding member to be effected.
3. A friction stir spot joining device according to claim 1, wherein an output shaft of the pin extraction motor is rendered hollow.
4. A friction stir spot joining device according to claim 1, further including a manual operation working section provided at a rear end side of an output shaft of the pressure application motor.