201250198 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種影像量測系統及方法，尤其係一種多倍 率下多形式刻度標示系統及方法。 【先前技術】 [0002] 影像量測係目前精密量測領域中最廣泛使用的量測方法 ，該方法不僅精度高，而且量測速度快。影像量測主要 用於零件或者部件的尺寸物差和形位誤差的測量，對保 ^ 證產品品質起著重要的作用。 0 [0003] 影像量測方法是採用鏡頭搭配高解析度的電荷耦合裝置 (Charged Coupled Device，CCD)，透過影像擷取 卡取得測試工件或者部件的影像，該量測方法對工件或 者部件的很多精密量測都達到了很高的精度。 [0004] 但是在以前的圖像處理中，所獲取的測試工件的影像並 不會顯示刻度，用戶無法透過直觀的方式看到測試工件 的尺寸大小。 〇 【發明内容】 [0005] 鑒於以上内容，有必要提出一種多倍率下多形式刻度標 示系統及方法，其在測量工件時，選擇不同的倍率及不 同的刻度形式比對量測，可更精確的量測出測試工件的 特徵，在測試工件的影像上顯示刻度，也可很直觀的看 出量測特徵的尺寸大小，方便用戶觀查及分析工件尺寸 [0006] —種多倍率下多形式刻度標示系統，該系統包括：設置 1002033511-0 100119808 表單編號A0101 第3頁/共20頁 201250198 模組，用於設置鏡頭的倍率；計算模組，用於根據設置 的鏡頭的倍率計算C C D所拍攝的測試工件的影像的單位圖 元長度；讀取模組，用於從影像擷取卡中讀取測試工件 的影像；選擇模組，用於根據用戶的需求選擇刻度形式 ，並透過所述單位圖元長度計算所述刻度形式的刻度值 ;疊加模組，用於將用戶選擇的刻度形式及測試工件的 影像進行疊加，得到一個疊加影像。 [0007] —種多倍率下多形式刻度標示方法，該方法包括步驟： 設置鏡頭的倍率；根據設置的鏡頭的倍率計算CCD所拍攝 的測試工件的影像的單位圖元長度；從影像擷取卡中讀 取測試工件的影像；根據用戶的需求選擇刻度形式，並 透過所述單位圖元長度計算所述刻度形式的刻度值；將 用戶選擇的刻度形式及測試工件的影像進行疊加，得到 一個疊加影像。 [0008] 相較於習知技術，本發明所提供的多倍率下多形式刻度 標示系統及方法其在測量工件時，選擇不同的倍率及不 同的刻度形式比對量測，可更精確的量測出測試工件的 特徵，在測試工件的影像上顯示刻度，也可很直觀的看 出量測特徵的尺寸大小，方便用戶觀查及分析工件尺寸 【實施方式】 [0009] 參閱圖1所示，係本發明多倍率下多形式刻度標示系統較 佳實施例的硬體架構圖。該多倍率下多形式刻度標示系 統應用於電腦1。該電腦1連接有放置測試工件5的影像量 測機台2。其中，所述影像量測機台2的Z軸上安裝有用於 100119808 表單編號 A0101 第 4 頁/共 20 頁 1002033511-0 201250198 採集連續影像的電荷耦合裝置（Charged Coupled kvice，CCD) 3，所述CCd 3連接有鏡頭*，所述CCP 3 搭配鏡頭4可以使測試工件5成像；所述影像量測機台2的 2袖上還安裝有發光裝置（圖巾未示出），所述發光裝置 用於為測試工件5成像提供影像光源。所述的發光裝0 乂是燈g及任意合適的能夠提供光源的發光體。 [0010] ο Ο [0011] 所述電腦1裝有影像操取卡10及多倍率下多形式刻度梯承 系、先11。其中CCD 3透過一條影像資料線與所述影像擷取 卡10相連，將從影像量測機台2獲取的測試工件5的影像 傳送到影賴取卡1G上，並可簡*與電腦丨相連接的顯 示器6上。所述多倍率下多形式刻度標示系統⑽接上述 鏡頭4，主要詩控制述鏡頭4，並對鏡頭4的倍率進行 調即’並對影像操取卡1〇中的測試工件5的影像進行處理 ，以將經過處理的測試工件5的影像在顯示器6上顯示出 來。所述多倍率下多形式刻度標示系統n將會在圖2及圖 3中做詳細描述。 參閲圖2所示，係、圖1中多倍率下多形式刻度標示系統U 的功能模組圖。本發明所稱的各模組是所述多倍率下多 形式刻度標7F纟統11巾完賴定魏的各個程式段，比 程式本身更適合於描述軟體在電腦中的執行過程，因此 本發明對軟體的描述都以模組描述。 所述多倍率下多形式刻度標主要包括：設置模 組110、計算模組120、讀取模組13〇、選擇模組14〇、疊 加模組1 5 0及顯示模組1 6 0。 100119808 表單編號A0101 第5頁/共20頁 1002033511-0 [0012] 201250198 [0013] 所述設置模組110用於設置鏡頭4倍率。在本較佳實施例 中，所述鏡頭4的倍率為一到六倍，每個倍率對應一個數 字，例如，一倍的倍率對應數字為一，二倍的倍率對應 數字為二，以此類推，六倍的倍率對應數字為六，用戶 只需要輸入對應的數字就可以很方便的設置鏡頭4的倍率 ，當用戶設置數字時，鏡頭4自動調整到該數字對應的倍 率。 [0014] 所述計算模組120用於根據用戶設置的鏡頭4的倍率計算 CCD 3所拍攝的測試工件的影像的單位圖元長度。所述單 位圖元長度是指單位距離内每個圖元的長度值，具體而 言，假設單位長度為0. 1毫米，CCD 3所拍攝的測試工件 的影像中的該單位長度内的圖元數量有5個，則單位圖元 長度為0.02毫米。不同的倍率下單位長度不同，例如， 六倍的倍率下由於圖元數量比一倍的倍率下圖元值要少 ，因此六倍的倍率下的單位圖元長度比一倍的倍率下的 單位圖元長度要大。 [0015] 所述讀取模組130用於讀取測試工件5的影像。具體而言 ，所述讀取模組130從影像擷取卡10中讀取CCD 3所獲取 的測試工件的影像。 [0016] 所述選擇模組140用於根據用戶的需求選擇刻度形式，並 透過所述單位圖元長度計算所述刻度形式的刻度值。 [0017] 所述刻度形式包括無刻度形式、標準刻度形式、方形刻 度形式及圓形刻度形式。 [0018] 所述無刻度形式是指一個座標系的橫軸和縱軸中沒有標 100119808 表單編號A0101 第6頁/共20頁 201250198 明刻度值，如圖4所示，所述無刻度形式用於顯示測試工 件5的影像大小。 [0019] 所述標準刻度形式是指一個座標系中的橫軸和縱轴都標 明有刻度值，如圖5所示，所述標準刻度形式用於比對測 試工件5的寬度及高度。 [0020] 所述方形刻度形式是指一個座標系中的橫軸和縱軸都標 明有刻度值，且還包括多個沒有刻度的橫軸和縱轴，形 成一個方形表格，如圖6所示，所述方形刻度形式用於比 ^ 對測試工件5所佔面積大小。 [0021] 所述圓形刻度形式是指一個座標系中的橫軸和縱軸都標 明有刻度值，且還包括以固定半徑擴散的圓形，如圖7所 示，所述圓形刻度形式用於比對測試工件5的圓度及直徑 大小。 [0022] 所述疊加模組150用於將用戶選擇的刻度形式及測試工件 5的影像進行疊加，得到一個疊加影像。所述疊加的方式 是，將測試工件5的影像放在最底層，將用戶選擇的刻度 形式放在最上層，從而得到一個疊加影像。如圖4至圖7 所示。 [0023] 所述計算所述刻度形式的刻度值的方式如下： [0024] 以測試工件的影像的中心為中心點，橫向左邊為負刻度 ，橫向右邊為正刻度，縱向上邊為正刻度，縱向下邊為 負刻度。每個刻度都包含一定數量的圖元（例如，17個 圖元），每個刻度值為17*0. 02 = 0. 34毫米。如圖4至圖7 所示，圖中的每個刻度表示0. 34毫米，例如，圖5中的橫 100119808 表單編號A0101 第7頁/共20頁 1002033511-0 201250198 向右邊正刻度“1”表示0.34毫米，橫向右邊正刻度“2 ”表示0.68毫米。 [0025] [0026] [0027] [0028] 所述顯示模組1 60用於將疊加的影像在顯示器6中顯示出 來。 參閱圖3所示’係本發明多倍率下多形式刻度標示方法較 佳實施例的實施流程圖。 步驟S10，設置模組no設置鏡頭4的倍率。在本較佳實施 例中，所述鏡頭4的倍率為—到 >户，每個倍率對應一個 ' 〇 數字，例如，一倍的倍率對應數字為一，二倍的倍率對 應數字為二，以此類推，六倍的倍率對應數字為六，用 戶只需要輸入對應的數字就可以很方便的設置鏡頭4的倍 率’當用戶設置數字時，鏡頭4自動調整到該數字對應的 倍率。 步驟S20，計算模組〗2〇根據用戶設置的鏡頭4的倍率計算 CCD 3所拍攝的測試工件的影像的單位圖元長度。所述單 位圖兀長度是指單位距離内每個圖元的長度值，具體而 §，假設單位長度為〇. i毫米，CCD 3所拍攝的測試工件 的影像中的該單位長度内的圖元數量有5個，則單位圖元 長度為0.02毫米。不同的倍率下單位長度不同，例如， 六倍的倍率下由於圖元數量比—倍的倍率下圖元值要少 ，因此六倍的倍率下的單位圖元長度比一倍的倍率下的 單位圖元長度要大。 步驟S30 ’讀取模組13〇讀取測試工件5的影像。具體而言 ，所述讀取模組130從影像掏成卡1〇中讀取cep 3所獲取 100119808 表單編號A0101 第8頁/共20頁 1002033511-0 [0029] 201250198 [0030] 的測試工件的影像。 步驟S40，選擇模組140根據用戶的需求選擇刻度形式， 並透過所述單位圖元長度計算所述刻度形式的刻度值。 所述刻度形式包括無刻度形式、標準刻度形式、方形刻 度形式及圓形刻度形式。 [0031] 所述無刻度形式是指一個座標系的橫軸和縱軸中沒有標 明刻度值，如圖4所示，所述無刻度形式用於顯示測試工 件5的影像大小。 C [〇〇32] 所述標準刻度形式是指一個座標系中的橫軸和縱軸都標 明有刻度值，如圖5所示，所述標準刻度形式用於比對測 試工件5的寬度及高度。 [0033] 所述方形刻度形式是指一個座標系中的橫軸和縱軸都標 明有刻度值，且還包括多個沒有刻度的橫軸和縱軸，形 成一個方形表格，如圖6所示，所述方形刻度形式用於比 對測試工件5所佔面積大小。 〇 [0034] 所述圓形刻度形式是指一個座標系中的橫軸和縱軸都標 明有刻度值，且還包括以固定半徑擴散的圓形，如圖7所 示，所述圓形刻度形式用於比對測試工件5的圓度及直徑 大小。 [0035] 所述計算所述刻度形式的刻度值的方式如下： [0036] 以測試工件的影像的中心為中心點，橫向左邊為負刻度 ，橫向右邊為正刻度，縱向上邊為正刻度，縱向下邊為 負刻度。每個刻度都包含一定數量的圖元（例如，17個 100119808 表單編號A0101 第9頁/共20頁 1002033511-0 201250198 圖元）’每個刻度值為17*〇. 〇2 = 〇_34毫米 如圖4至圖7 所示’圖中的每個刻度表示0. 向右邊正刻度“1”表示0.34 ”表示0. 68毫米。 34毫米，例如，圖5中的橫 毫米，橫向右邊正刻度“2 [0037] [0038] 步驟S5G，疊加模組15()將用戶選擇的刻度形式及測試工 =的影像進行疊加’得到一個疊加影像。所述疊加的方 式疋’將測試工件5的影像放在最底層，將用戶選擇的刻 度形式放在最上層，從而得到一個叠加影像。如圖4至圖 7所示。 〇 步驟S6〇，顯不模組160將疊加的影像在顯示器6中顯示出 [0039] [0040] 取後所應說明的是，以上實施例僅用以說明本發明的技 術方案而非_，儘管參照以上較佳實施㈣本發明進 打了詳細說明’本領域的普通技術人員應當理解，可以 對本發明的技術方案進行修改或等同替換，而不脫離本 發明技術方案—神和範圍。【圖式簡單說明】‘圖1係本發明多倍率下多形式刻度標示系統較佳實施例的 硬體架構圖。 [0041] 圖2係圖1中多倍率下多形式刻度標示系統的功能模組圖 [0042] 圖3係本發明多倍率下多形式刻度標示方法較佳實施例的 實施流程圖。 [0043] 100119808 圖4係本發明帶無刻度形式的測試工件的影像示意圖 表單編號A0101 第10頁/共2〇頁 1002033511-0 201250198 [0044] 圖5係本發明帶標準刻度形式的測試工件的影像示意圖 [0045] 圖6係本發明帶方形刻度形式的測試工件的影像示意圖 [0046] 圖7係本發明帶圓形刻度形式的測試工件的影像示意圖 [0047] 【主要元件符號說明】 電腦：1 [0048] 影像量測機台：2 [0049] CCD ： 3 〇 [0050] 鏡頭：4 [0051] 測試工件：5 [0052] 顯示器：6 [0053] 影像擷取卡：10 [0054] 多倍率下多形式刻度標示系統：11 [0055] 設置模組：110 ❹[0056] 計算模組：120 [0057] 讀取模組：130 [0058] 選擇模組：140 [0059] 疊加模組：15 0 [0060] 顯示模組：160 100119808 表單編號A0101 第11頁/共20頁 1002033511-0201250198 VI. Description of the Invention: [Technical Field] The present invention relates to an image measuring system and method, and more particularly to a multi-format multi-format scale marking system and method. [Prior Art] [0002] Image measurement system is currently the most widely used measurement method in the field of precision measurement. This method not only has high precision, but also has fast measurement speed. Image measurement is mainly used to measure the dimensional difference and shape error of parts or components, which plays an important role in ensuring the quality of products. 0 [0003] The image measurement method uses a lens with a high-resolution Charged Coupled Device (CCD) to obtain an image of a test workpiece or component through an image capture card. The measurement method has many workpieces or components. Precision measurement has achieved high precision. [0004] However, in the previous image processing, the image of the obtained test workpiece does not display the scale, and the user cannot visually see the size of the test workpiece. 〇 [Summary of the Invention] [0005] In view of the above, it is necessary to propose a multi-scale multi-form scale marking system and method, which can select different magnifications and different scale forms for comparison measurement when measuring workpieces, which can be more accurate. The measurement measures the characteristics of the test workpiece, displays the scale on the image of the test workpiece, and can also visually see the size of the measurement feature, which is convenient for the user to observe and analyze the workpiece size [0006] - multiple forms under multiple magnification Scale marking system, the system includes: setting 1002033511-0 100119808 form number A0101 page 3 / total 20 pages 201250198 module for setting the magnification of the lens; calculation module for calculating the CCD according to the magnification of the set lens The unit symbol length of the image of the test workpiece; the reading module is used to read the image of the test workpiece from the image capture card; the selection module is used to select the scale form according to the user's needs, and through the unit The length of the primitive calculates the scale value of the scale form; the overlay module is used to superimpose the user-selected scale form and the image of the test workpiece Get a superimposed image. [0007] A multi-scale multi-form scale marking method, the method comprising the steps of: setting a magnification of a lens; calculating a unit primitive length of an image of a test workpiece captured by the CCD according to a magnification of the set lens; capturing a card from the image Reading the image of the test workpiece; selecting the scale form according to the user's needs, and calculating the scale value of the scale form through the unit element length; superimposing the user-selected scale form and the image of the test workpiece to obtain an overlay image. [0008] Compared with the prior art, the multi-scale multi-scale scale marking system and method provided by the invention can select different magnifications and different scale forms to measure the workpiece when measuring the workpiece, and can accurately measure the amount. Measure the characteristics of the test workpiece, display the scale on the image of the test workpiece, and also visually see the size of the measurement feature, which is convenient for the user to observe and analyze the workpiece size. [Embodiment] [0009] See Figure 1 It is a hardware architecture diagram of a preferred embodiment of the multi-format scale marking system of the multi-rate of the present invention. The multi-format scale marking system is applied to the computer 1 at the multi-rate. The computer 1 is connected to an image measuring machine 2 on which a test workpiece 5 is placed. Wherein, the Z-axis of the image measuring machine 2 is mounted with a Charged Coupled kvice (CCD) 3 for collecting a continuous image for 100119808 Form No. A0101, 4/20, 1002033511-0 201250198, The CCd 3 is connected with a lens*, and the CCP 3 is matched with the lens 4 to image the test workpiece 5; the second measuring sleeve of the image measuring machine 2 is further provided with a light-emitting device (not shown), the light-emitting device Used to provide an image source for imaging the test piece 5. The illuminating device is a lamp g and any suitable illuminant capable of providing a light source. [0010] ο Ο [0011] The computer 1 is equipped with an image handling card 10 and a multi-format multi-format scale ladder, first 11. The CCD 3 is connected to the image capturing card 10 through an image data line, and the image of the test workpiece 5 obtained from the image measuring machine 2 is transmitted to the card 1G, and can be compared with the computer. Connected to display 6. The multi-rate multi-form scale marking system (10) is connected to the lens 4, and the main poem controls the lens 4, and adjusts the magnification of the lens 4, and processes the image of the test workpiece 5 in the image handling card 1〇. To display the image of the processed test piece 5 on the display 6. The multi-format multi-form scale marking system n will be described in detail in Figures 2 and 3. Referring to Figure 2, the functional module diagram of the multi-format scale marking system U at multiple magnifications in Figure 1. The modules referred to in the present invention are various programs of the multi-scale multi-form scale 7F system, and are more suitable for describing the execution process of the software in the computer than the program itself, so the present invention The description of the software is described in modules. The multiple-format multi-scale scales mainly include: a set module 110, a calculation module 120, a read module 13A, a selection module 14A, an overlay module 150, and a display module 160. 100119808 Form No. A0101 Page 5 of 20 1002033511-0 [0012] 201250198 [0013] The setting module 110 is used to set the lens 4 magnification. In the preferred embodiment, the magnification of the lens 4 is one to six times, and each magnification corresponds to one number. For example, the magnification of the multiple corresponds to one, the magnification of the second is two, and so on. The six-fold magnification corresponds to a number of six. The user only needs to input the corresponding number to conveniently set the magnification of the lens 4. When the user sets the number, the lens 4 automatically adjusts to the magnification corresponding to the number. [0014] The calculation module 120 is configured to calculate a unit primitive length of the image of the test workpiece captured by the CCD 3 according to the magnification of the lens 4 set by the user. The unit element length refers to the length value of each primitive in the unit distance. Specifically, the unit length is 0.1 mm, and the element within the unit length in the image of the test workpiece captured by the CCD 3 The number of units is 5, and the unit element length is 0.02 mm. The unit lengths are different under different magnifications. For example, at a magnification of six times, the number of primitives is less than the number of primitives, so the unit length of the magnification of six times is more than the unit of magnification. The length of the primitive is large. [0015] The reading module 130 is configured to read an image of the test workpiece 5. Specifically, the reading module 130 reads an image of the test workpiece acquired by the CCD 3 from the image capturing card 10. [0016] The selection module 140 is configured to select a scale form according to a user's requirement, and calculate a scale value of the scale form by using the unit element length. [0017] The scale form includes a scaleless form, a standard scale form, a square scale form, and a circular scale form. [0018] The unscaled form means that the horizontal axis and the vertical axis of one coordinate system are not marked with the number 100119808, the form number A0101, the sixth page, the total 20 pages, the 201250198 clear scale value, as shown in FIG. 4, the scaleless form is used. The image size of the test workpiece 5 is displayed. [0019] The standard scale form means that both the horizontal axis and the vertical axis of a coordinate system are marked with scale values, as shown in FIG. 5, which is used to compare the width and height of the test workpiece 5. [0020] The square scale form means that both the horizontal axis and the vertical axis of a coordinate system are marked with a scale value, and further includes a plurality of horizontal and vertical axes without scales, forming a square table, as shown in FIG. The square scale form is used to compare the area occupied by the test workpiece 5. [0021] The circular scale form means that both the horizontal axis and the vertical axis of one coordinate system are marked with a scale value, and further includes a circle diffused by a fixed radius, as shown in FIG. 7 , the circular scale form Used to align the roundness and diameter of the test piece 5. [0022] The superimposing module 150 is configured to superimpose the scale form selected by the user and the image of the test workpiece 5 to obtain a superimposed image. The superposition is performed by placing the image of the test workpiece 5 at the lowest level and placing the scale selected by the user on the uppermost layer to obtain a superimposed image. As shown in Figure 4 to Figure 7. [0023] The manner of calculating the scale value of the scale form is as follows: [0024] The center of the image of the test workpiece is centered, the left side of the horizontal direction is a negative scale, the right side of the horizontal direction is a positive scale, and the upper side of the vertical direction is a positive scale, and the longitudinal direction is The lower side is a negative scale. Each scale contains a certain number of primitives (for example, 17 primitives), each scale value is 17*0. 02 = 0. 34 mm. As shown in Fig. 4 to Fig. 7, each scale in the figure represents 0.34 mm, for example, the horizontal 100119808 in Fig. 5, the form number A0101, the 7th page, the total 20 pages, 1002033511-0, 201250198, the right scale "1" Indicates 0.34 mm, and the horizontal right scale "2" indicates 0.68 mm. [0028] [0028] The display module 1 60 is configured to display the superimposed image on the display 6. Referring to Figure 3, there is shown a flow chart of an embodiment of a preferred embodiment of the multi-format scale marking method of the present invention. In step S10, the module no setting is set to set the magnification of the lens 4. In the preferred embodiment, the magnification of the lens 4 is - to > household, each magnification corresponds to a '〇 number, for example, the multiple of the corresponding number is one, and the multiple of the multiple is two. By analogy, the six-fold magnification corresponds to a number of six. The user only needs to input the corresponding number to conveniently set the magnification of the lens 4. When the user sets the number, the lens 4 automatically adjusts to the magnification corresponding to the number. In step S20, the calculation module 〇2 计算 calculates the unit primitive length of the image of the test workpiece captured by the CCD 3 according to the magnification of the lens 4 set by the user. The unit map length refers to the length value of each primitive in the unit distance, and specifically §, assuming that the unit length is 〇.i mm, the unit of the unit length in the image of the test workpiece captured by the CCD 3 The number of units is 5, and the unit element length is 0.02 mm. The unit lengths are different under different magnifications. For example, at a magnification of six times, the number of primitives is less than the magnification of the multiples, so the unit length of the magnification of six times is smaller than the unit of magnification. The length of the primitive is large. Step S30' reads the module 13 to read the image of the test workpiece 5. Specifically, the reading module 130 reads the test workpiece of the 100119808 form number A0101, page 8 of the total 20 pages 1002033511-0 [0029] 201250198 [0030] from the image capture card 1〇. image. In step S40, the selection module 140 selects the scale form according to the user's needs, and calculates the scale value of the scale form through the unit element length. The scale forms include a scaleless form, a standard scale form, a square scale form, and a circular scale form. [0031] The unscaled form means that the scale value is not indicated in the horizontal axis and the vertical axis of a coordinate system. As shown in FIG. 4, the scaleless form is used to display the image size of the test workpiece 5. C [〇〇32] The standard scale form means that both the horizontal axis and the vertical axis of a coordinate system are marked with a scale value, as shown in FIG. 5, which is used to compare the width of the test workpiece 5 and height. [0033] The square scale form means that both the horizontal axis and the vertical axis of a coordinate system are marked with a scale value, and further includes a plurality of horizontal and vertical axes without scales, forming a square table, as shown in FIG. The square scale form is used to align the area occupied by the test workpiece 5.圆形[0034] The circular scale form means that both the horizontal axis and the vertical axis of one coordinate system are marked with a scale value, and further includes a circle diffused by a fixed radius, as shown in FIG. The form is used to align the roundness and diameter of the test piece 5. [0035] The manner of calculating the scale value of the scale form is as follows: [0036] The center of the image of the test workpiece is centered, the left side of the horizontal direction is a negative scale, the right side of the horizontal direction is a positive scale, and the upper side of the vertical direction is a positive scale, and the longitudinal direction is The lower side is a negative scale. Each scale contains a certain number of primitives (for example, 17 100119808 Form No. A0101 Page 9 / Total 20 Pages 1002033511-0 201250198 Entities) 'Each scale value is 17*〇. 〇2 = 〇_34 mm As shown in Fig. 4 to Fig. 7, each scale in the figure represents 0. The right scale "1" indicates 0.34" indicates 0. 68 mm. 34 mm, for example, the horizontal mm in Fig. 5, the horizontal right scale [2] [0038] Step S5G, the overlay module 15() superimposes the user-selected scale form and the image of the tester= to obtain a superimposed image. The superimposed mode 疋' puts the image of the test workpiece 5 on the bottom layer and the user-selected scale form on the top layer to obtain a superimposed image. As shown in Figure 4 to Figure 7. In step S6, the display module 160 displays the superimposed image on the display 6 [0039] [0040] It should be noted that the above embodiment is only used to illustrate the technical solution of the present invention instead of _, Although the present invention has been described in detail with reference to the preferred embodiments of the invention, <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1 is a hardware structural diagram of a preferred embodiment of the multi-format scale marking system of the multiple magnification of the present invention. 2 is a functional block diagram of a multi-format scale marking system in multiple magnification in FIG. 1. [0042] FIG. 3 is a flow chart showing an embodiment of a multi-format scale marking method in accordance with a preferred embodiment of the present invention. [0043] FIG. 4 is an image diagram of a test workpiece with a scale-free form of the present invention. Form No. A0101 Page 10/Total 2 page 1002033511-0 201250198 [0044] FIG. 5 is a test workpiece of the present invention in the form of a standard scale. [0045] FIG. 6 is a schematic diagram of an image of a test workpiece having a square scale form according to the present invention. [0046] FIG. 7 is a schematic diagram of an image of a test workpiece having a circular scale form according to the present invention [0047] [Explanation of main component symbols] Computer: 1 [0048] Image measuring machine: 2 [0049] CCD: 3 〇 [0050] Lens: 4 [0051] Test workpiece: 5 [0052] Display: 6 [0053] Image capture card: 10 [0054] Multi-format scale marking system under magnification: 11 [0055] Setting module: 110 ❹ [0056] Calculation module: 120 [0057] Reading module: 130 [0058] Selection module: 140 [0059] Overlay module: 15 0 [0060] Display module: 160 100119808 Form number A0101 Page 11 / Total 20 pages 1002033511-0