KR20010096358A - A method of sculptured personal relief - Google Patents

Abstract

PURPOSE: A method for sculpturing a portrait relief using a computer numerical control(CNC) is provided, which can engrave the portrait relief in intaglio and in relief automatically using a graphic program like a photo shop or a paint shop after converting a portrait photo into gray scale. CONSTITUTION: The method includes a portrait photo scan step(S1) scanning a portrait photo with a scanner, a gray scale conversion step(S2) converting the scanned photo into gray scale and storing it, a gray numerical value input step(S3) correcting a light and darkness part of the gray scale photo with a graphic program and inputting its value. And a portrait shape modeling step(S4) reads a numerically-converted portrait shape with a modeling program and models it. Then, a sculpture plate automatic sculpture step(S5) sculptures precisely a sculpture plate loaded in a CNC(Computer Numerical Control) sculpture apparatus with a corresponding depth numerically inputted according to the photo shape. The method also includes a sculpture plate press molding and closing processing step(S6) forming a portrait shape on a metal plate by pressing the metal plate and coating it.

Description

A method of sculptured personal relief using computer numerical control

The present invention relates to a method of engraving human relief using computer numerical control, and in more detail, it is necessary to precisely express the portrait by converting the portrait into a grayscale in which the contrast is clearly expressed and correcting and inputting it through a graphic program. The present invention relates to a method of sculpture of a person relief using computer numerical control that enables the person relief to be automatically engraved realistically and delicately in an embossed and engraved manner so as to be closer to the actual figure.

In general, Computer Numerical Control (CNC) is used to control machine tools such as lathes and cutting machines by using a computer, and inputs a control program written in CAD / CAM into a computer embedded in the machine tool. This is done.

FIG. 1 is a diagram illustrating an operation step of automatically carving a person relief using a CNC (Computer Numerical Control). As shown in FIG. 1, first, a portrait photograph is scanned and stored by a scanner through a portrait photograph scanning step (S1), and a figure shape that is numerically converted and input and stored through a portrait figure modeling step (S2) is included in a modeling program. Load it into the Modeling Program to model it.

Then, the engraving plate mounted on the CNC engraver through the engraving plate automatic engraving step (S5) is precisely sculpted to the corresponding depth input numerically in accordance with the picture shape, and finally the engraving piece precisely through the engraving plate finishing step (S4) Sulfuric acid is directly treated on the upper surface of the plate, and then the surface is coated.

In other words, in the case of the conventional sculpture method using computer numerical control (Computer Numeric Control) based on the photo contrast of the portrait photograph scanned by the scanner only by the modeling program is processed by molding the portrait relief by processing only the model relief There was a problem that the molding process of the exact portrait relief is very difficult because the processing height according to the contrast can be different. For example, if there are grease on the cheeks of the face, the contrast of the cheeks of the greasy face may be brighter when taking pictures. There is a problem that it is difficult to accurately read the contrast.

For the reasons described above, when the contrast of the picture is developed incorrectly, when the relief of the person is carved based only on the output contrast of the scanned picture, the height of relief during the shape of the face is changed by the CNC engraver. This often happened.

The output conditions of the scanned photographs are important, and due to problems such as the reflection of light on a specific part of the face, the conventional portrait relief sculpture method is limited to the accurate molding of the portrait relief based on the scan data to match the same contrast level as the face of a real person. There was no choice but to.

The present invention has been invented to solve all the limitations of the portrait relief carving method up to now, converting the portrait photography to a gray scale in which the contrast difference is clearly expressed, and appropriately using a graphic program such as Photoshop or closed shop. Correcting and inputting the contrast of each part of the picture, the portrait relief using computer numerical control that can automatically engrave the portrait relief that requires precise expression, such as hair and eyes, to be more realistic and delicately embossed and engraved, closer to the real figure The purpose is to provide a carving method.

The present invention for achieving the above object, a portrait scan step of scanning a portrait photograph with a scanner;

A grayscale conversion step of converting and storing the scanned picture in grayscale (contrast step);

A contrast value input step of inputting an appropriate value by modifying the contrast portion with a graphic program so that the sculpting depth is determined according to the shape of the grayscale photograph;

A figure shape modeling step of reading the numerical figure of the figure into a modeling program and modeling the figure;

A engraving plate automatic engraving step of precisely engraving the engraving plate mounted on the CNC engraver to the corresponding depth input numerically according to the photograph shape; And

Sulfuric acid treatment is performed directly on the upper surface of the engraving plate, and then the surface is coated or the metal plate is placed on the engraving plate and pressed by a press to form a figure of the engraving plate on the metal plate, and the sulfuric acid treatment is performed on the surface. After the business card treatment is characterized in that it comprises a engraving plate press forming and finishing treatment step of coating the surface.

In addition to the above features, the engraving plate is made of metal or artificial stone, the metal plate is made of copper plate or aluminum plate, the graphic program is to modify the appearance of the face of the portrait photograph input by the scanner or to remove wrinkles or color It can be used as photoshop or fat shop, a photo synthesis and correction software that can be adjusted.

Hereinafter, the objects, advantages and features of the person relief carving method using the computer numerical control according to the present invention will be described in more detail with reference to the accompanying drawings in order to explain a preferred embodiment.

1 is a diagram illustrating a work procedure of a person relief carving method using a conventional computer numerical control.

2 is a diagram illustrating a work order of a person relief sculpture using computer numerical control of the present invention.

※ Explanation of code about main part of drawing ※

S1: Portrait Photo Scan Step S2: Grail Scale Conversion Step

S3: Contrast value input step S4: Character shape input step

S5: engraving engraving automatic step S6: engraving engraving automatic step

FIG. 2 is a diagram illustrating a work procedure of a person relief carving method using computer numerical control (CNC) according to the present invention. As shown in FIG. 2, the photographic image is black and white so as to input the photographic contrast appropriately so that the relief of the ornament or the cemetery such as face shape or other precise expression is required to be more realistic and delicately embossed and engraved. When displayed, converts the brightness change between black and white to Gray Scale expressed in stages (256 steps in computer graphics), and converts the saved scanned photo such as Photoshop or Paintshop. After adjusting the contrast with a separate graphic program, you can read it into your own modeling program and precisely process the engraving plate with a CNC engraver to mold and shape the person relief like a real person.

That is, after scanning the portrait picture with the scanner through the portrait picture scanning step (S1), and converts and saves the scanned picture to grayscale (contrast step) through the grayscale conversion step (S2), input the contrast value step (S3) The grayscale picture is input to the appropriate value by modifying the contrast part with a separate graphic program such as Photoshop or paint shop so that the sculpting depth is determined according to the figure of the person.

Photoshop, which is used as the graphics program, is a software for synthesizing and correcting photographs developed by Adobe Systems, Inc., and is mainly used for correcting the appearance of face, removing wrinkles, or adjusting colors of a portrait photograph input by a scanner.

In addition, the figure of the figure converted through the contrast value input step (S3) is read (modeled) by the modeling program in the figure shape modeling step (S4) and modeled (modeling). In%, the black part is recognized as the lowest part and the white part is recognized as the highest part. Therefore, a graphic program such as Photoshop or Fate Shop is used.

In addition, on the basis of the scan data modeled and read through the person shape modeling step (S4), in the engraving plate automatic engraving step (S5), the engraving plate mounted on the CNC engraver is precisely inputted to the depth corresponding to the scan data, which is an accurate photograph. It is carved and finally coated after sulfuric acid treatment through engraving plate press forming and finishing step (S6).

That is, the engraving plate made of metal or artificial stone is automatically precisely carved according to the portrait of the person through the engraving plate automatic manipulation step (S5). The entire surface is coated and finished.

In addition, the metal plate is placed on the engraving plate prior to the sulfuric acid treatment of the precisely carved human relief operation plate, and then press-pressed to form a figure of the engraving plate on the metal plate, and further processed by a sulfuric acid treatment on the plate. Afterwards, the surface can be finally coated, wherein the metal plate is made of copper or aluminum.

The computer numerical control of the present invention can more accurately and embossed and engraved reliefs such as ornaments and graveyards that require face shapes or other precise expressions by inputting photographic contrast appropriately through such processing steps. The method used to control the portrait relief uses the existing modeling program to overcome the limitations of being carved from the actual shape in the parts such as hair and eyes, while being relief in accordance with the photographic contrast when processing the portrait relief. It can be formed by modifying it to the actual shape.

In other words, the graphic program treats the hair brighter than the contrast of the face and corrects the wave according to the shape of the head, or expresses the pupil image by comparing and analyzing the white and black parts of the pupil with the height of the face, By comparing and analyzing the contrast shown in the image can be expressed in the shape of the face according to the image of the face.

In addition, after the graphic program has been modified, the modeling program can form the hair of a normal figure relief, and can precisely process the eye part that tastes like a sculpture, and form a face that matches the relief shape. As a result, the normal relief image can be sculpted by going through the graphic program modification and generating the modeling program.

According to the portrait relief engraving method using the computer numerical control of the present invention as described above, converting the portrait photograph to grayscale that clearly expresses the contrast difference, and corrected and input through a graphic program to accurately express like hair or eyes The required human relief can be automatically carved into real and delicate reliefs and intaglios closer to the actual human figure, so that it can be widely used for stereoscopic processing requiring precise processing such as ornaments and tombstones. It is expected.

While preferred embodiments of the present invention have been described using specific terms, such descriptions are for illustrative purposes only and various changes and modifications may be made without departing from the spirit and scope of the following claims. It must be understood.

Claims (4)

A portrait scan step (S1) of receiving a portrait scan by a scanner; A gray scale conversion step (S2) of converting and storing the scanned picture in grayscale (contrast step); Contrast value input step (S3) of inputting an appropriate value by modifying the contrast portion with a graphic program so that the sculpting depth is determined according to the shape of the grayscale picture; A figure shape modeling step (S4) of reading the figure of the figure converted into a modeling program and modeling the figure; A engraving plate automatic engraving step (S5) of precisely carving the engraving plate mounted on the CNC engraving machine to the corresponding depth input numerically in accordance with the photo shape; In addition, after the sulfuric acid treatment on the upper surface of the engraving plate directly and contrast treatment, the surface is coated or the metal plate is placed on the engraving plate and pressed to form a figure of the engraving plate on the metal plate and sulfuric acid treatment thereon. After the business card processing, the engraving relief press molding and finishing process (S6) for coating the surface of the person relief sculpture using computer numerical control, characterized in that comprises a. The method of claim 1, wherein the engraving plate is made of metal or artificial stone carving method using a computer numerical control, characterized in that. 2. The method of claim 1, wherein the metal plate is made of copper or aluminum. The computer program according to claim 1, wherein the graphic program is used as a photo collage or a photo shop for photo synthesis and correction software that can correct a face, remove wrinkles, or adjust colors of a portrait photograph input by a scanner. Figure relief method using numerical control.