201015977 六、發明說明： 【發明所屬之技術領域】 • 本發明係關於一種具有預視功能的數位相機及其利用子書面 ' 預視有興趣影像的方法，尤指一種使用子畫面作為影像預視的數 位相機及其預視方法。 【先前技術】 第一圖為習知數位相機所使用TFT-LCD之預視系統電路方 塊示意圖。請參照第一圖，物體影像105以光學原理透過攝影裝 φ 置110以掃瞄方式轉為一連串電壓信號115，電壓信號115再經過 色彩過濾陣列（Color Filter Army ; CFA) 120分離為三原色信號 12S。於拍攝㈣當時之環境照度可能太亮献暗，或者可能因光 源的不同(如陽光、鶴絲燈光、日光燈…等)而導致所攝物體之色彩 有所偏差，而必須針對光源作一白平衡修正(侧把触㈣。触 將王原色信號125傳送至白平衡電路13〇，經完成白平衡修正 生影像信號135。 隨，攝影裝置11G種類的不同’對於同—物體拍攝後所得到 ❹之色彩信號也就不同，故需針對該攝影裝置11〇之特性作色件 正(Cd〇r C〇1Tection)。於是影像信號出需再送至色彩修正電ς 140調整其色彩表現，而後產生影像信號145。另外，攝影裝置⑽ 中之感光像素所產生之電壓與TFT_LCD 19〇之透光表現，二者並 ;非成線性(1ώ⑽關係。欲使拍攝之亮度表現能正確儲存並顯現於 TFT LCD 190 t ’必須將影像信號145施加迦瑪修正伽職 C_Ctl〇n) °因此’將影像信號145送至迦瑪修正電路15〇，得到 修正後之影像信號155。 接著I正後之影像信號155必須進行色相轉換㈣沉e t_f_) ’將輸人影像分別代表紅色⑻、綠色⑹、藍色⑻ 3 201015977 等三原色轉成亮度(luminance)和彩度(chr〇minance)，分離的模式為 Y、"Cb、&;其中γ表示亮度，cb及Cr表示彩度。轉換成亮度 '二彩度？式之主要目的是因為人類眼睛對亮度的敏感度比彩度更 同。於疋將影像信號155經過色相轉換電路16〇將紅色（R)、綠 色（G)、監色（B)轉換為Y、Cb、Cr，得一影像信號⑹。 ，、後办像號165再利用邊緣強化電路(Edge Enhance) 170 使影像信號165更加鮮明銳利，以產生影像信號175。此時，影像 信號175之影像尺寸取決於攝影裝置11〇，該尺寸可能與 ❹I90所能顯示之影像尺寸不相同。為了19〇中顯示完 整影像，故必祕影像錢175以鮮方式酸其騎度，所以 使用平面祕f驗f路(2_D Image Sealar*)18G破該影像信號 175 ’以得一影像信號185。最後，將影像信號i85導入^ TFT-LCD 190，並正確顯示該影像信號185。 由上述可知，習知數位相機的預視系統只能提供單一影像晝 面效果的預視，並無法提供使用者其他影像的效果預視，以達到 晝面效果的直接觀看比較。因此，習知的數位相機無法提供一般 參較無攝影概念的使用者’直觀的選擇適當的晝面以進 【發明内容】 — 有鑑於此，本發明提供一種具有預視功能的數位相機及其利 用子晝面預視有興趣影像的方法，尤指一種使用子晝面作為影像 -·預視的數位相機’可於LCD預視(Live_view/preview)時，利用子母 晝面(PictUre inPicture)檢視子畫面中加減曝光值(EV)、白平衡或對 比度的影像效果，讓使用者可以更直觀選擇適當的拍攝影像。 本發明的具有預視功能的數位相機，包括：一鏡頭、—電荷 耦合單元、一曝光值計算處理單元、一白平衡/對比度計算處理^ 元、一液晶顯示面板、一子母影像處理單元、一記憶單元及一控 201015977 制按鍵。其中’鏡頭用以擷取一光學影像。電荷耦合單元耦接於 該鏡頭’用以將該光學影像轉成一數位影像。曝光值計算處理單 元耦接電荷耦合單元，用以計算該數位影像之曝光值，並產生相 異於該曝光值之至少一相異曝光值之數位影像。白平衡/對比度計 算處理單元耦接電荷耦合單元’用以計算該數位影像之白平衡/對 比度，並產生相異於該白平衡/對比度之至少一相異白平衡/對比度 之數位影像。子母影像處理單元耦接於該電荷耦合單元、曝光值201015977 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a digital camera with a preview function and a method for using the written description of an image of interest, especially a sub-picture as an image preview. Digital camera and its preview method. [Prior Art] The first figure is a block diagram of a pre-view system circuit block of a TFT-LCD used in a conventional digital camera. Referring to the first figure, the object image 105 is optically converted into a series of voltage signals 115 through the imaging device φ 110, and the voltage signal 115 is separated into three primary color signals 12S by a color filter array (CFA) 120. . At the time of shooting (4), the ambient illumination may be too bright and dark, or the color of the object may be deviated due to different light sources (such as sunlight, crane lights, fluorescent lamps, etc.), and a white balance correction must be made for the light source. (Side touch (4). Touch the primary color signal 125 to the white balance circuit 13〇, and complete the white balance correction of the raw image signal 135. With the different types of the 11G of the photographing device, the color obtained after the same object is photographed. The signal is also different, so it is necessary to color the positive component (Cd〇r C〇1Tection) for the characteristic of the photographic device. Then, the image signal is sent to the color correction device 140 to adjust its color performance, and then the image signal 145 is generated. In addition, the voltage generated by the photosensitive pixels in the photographic device (10) and the light transmission performance of the TFT_LCD 19 , are both non-linear (1ώ(10) relationship. The brightness performance of the shooting can be correctly stored and displayed on the TFT LCD 190 t 'The image signal 145 must be applied to the gamma correction C_Ctl〇n'. Therefore, the image signal 145 is sent to the gamma correction circuit 15A to obtain the corrected image signal 155. The image signal 155 after I is positive must be subjected to hue conversion (4) sinking e t_f_) 'The three primary colors such as red (8), green (6), blue (8) 3 201015977, etc. are converted into luminance and chroma (chr〇minance). ), the separated modes are Y, "Cb, &; where γ represents brightness, and cb and Cr represent chroma. Convert to brightness 'two color? The main purpose of the formula is because the human eye is more sensitive to brightness than chroma. The image signal 155 is converted into Y, Cb, and Cr by the color signal conversion circuit 16A through the color conversion circuit 16A to obtain an image signal (6). The image signal 165 is further sharpened and sharpened by the edge enhancement 171 to generate the image signal 175. At this time, the image size of the image signal 175 depends on the photographing device 11〇, and the size may be different from the image size that the ❹I90 can display. In order to display the full image in the 19th frame, the video money 175 is acid-stained in a fresh manner, so the image signal 175' is broken using the plane image 175' to obtain an image signal 185. Finally, the image signal i85 is introduced into the TFT-LCD 190, and the image signal 185 is correctly displayed. It can be seen from the above that the pre-view system of the conventional digital camera can only provide a preview of the effect of the single image, and can not provide the effect preview of other images of the user, so as to achieve direct viewing comparison of the kneading effect. Therefore, the conventional digital camera cannot provide a user who generally refers to the concept of no photography to 'intuitively select an appropriate facet'. In view of the above, the present invention provides a digital camera with a preview function and A method of previewing images of interest by using a sub-surface, especially a digital camera using a sub-surface as an image-preview. In the case of LCD preview (Live_view/preview), a PictUre inPicture is used. Viewing the effect of adding or subtracting exposure (EV), white balance or contrast in the sub-picture allows the user to more intuitively select the appropriate shot. The digital camera with pre-view function of the invention comprises: a lens, a charge coupled unit, an exposure value calculation processing unit, a white balance/contrast calculation processing unit, a liquid crystal display panel, a sub-male image processing unit, A memory unit and a control button for the 201015977. The lens is used to capture an optical image. The charge coupled unit is coupled to the lens for converting the optical image into a digital image. The exposure value calculation processing unit is coupled to the charge coupled unit for calculating an exposure value of the digital image and generating a digital image of the at least one different exposure value different from the exposure value. The white balance/contrast calculation processing unit is coupled to the charge coupled unit ’ for calculating the white balance/contrast of the digital image and producing a digital image of at least one phase white balance/contrast different from the white balance/contrast. The sub-image processing unit is coupled to the charge coupled unit and the exposure value
計算處理單元、自平衡/對比度計算處理單元及贿晶顯示面板， 該子母影像處理單元將該數位影像顯示於驗晶顯示面板之母晝 面’以及將相異曝光值之_影像或相異白平衡/對比度之數位影 像顯示於液晶顯示面板之子畫面中，以供至少 y 時’該記憶單元__子母雜處釋元，肋贿該數位影 像、相異曝紐之餘影似姆白平衡鱗比度讀㈣ 鍵ίίΓ奸母娜處料元，肋嫌奸母影像處理 早疋執订各種選早項目的選取。 -晝面預視有興趣影像的方法，係適用於一 ^位相機的舰模式，其步魏财，哪 式，用以展示-數位影像的的―母晝面與至少^模 進入數位相機的纖項目的群 ^ 二’，，，w ’ 項目為一眼来插括H 疋平以選取有興趣項目，有興趣 擷取-綱像，、並轉:::=:對，目，·接下來， 有興趣項目及至少一相異有興趣項二以=至:算= 異有興趣項目之數位影像在子晝面^像在母畫財，及顯示該相 其♦當選取的有興趣項目為曝 -曝光值級距’―絲晝面中的數位影像與:子晝 5 201015977 值之數位影像。 另外，當有興趣項目為白平衡項目時，接下來，係根據子晝 面中相異白平衡之數位影像，以調整母畫面中的該數位影像。旦 最後，當選取的有興趣項目為對比度項目時，接下來，係根 據子晝面中相異對比度之數位影像，以調整母畫面中的該數位^ 像。 如 ❿ % 綜上’本發日柯直接在触域的LCD晝面上，比較相異暖 ，值㈣的影像效果，讓使用者可以更方便的選擇適合的曝光值 影像。子晝面除了可以顯示相異曝光值(EV)效果的晝面，也可以 顯示相異白平衡(white Balance)效果的晝面或相異對比产 (Contrast)效果的畫面等。以解決現階段的數位相機，只能= 調整曝光值(EV)後觀看到LCD中影像亮度的變化，而不能針^ 異曝光值(EV)的絲，在同―畫面直接觀纽較的缺點。 以上的概述與接下來的詳細說明皆為示範性質，是 步說明本發明的巾請專利·。而有關本發明的其他目的盘優 點，將在後續的說明與圖示加以闡述。 、 【實施方式】 請參考第二A圖’為本發明第一實施例具有預視功能的數位 相機電路方塊示意圖，數位相機2包括—綱2() 一電荷輕合w 元22、-液晶顯示面板26、—曝光值計算處理單元α、= /對比度計算處理單元25、一子母影像處理單元Μ、 齡 27及-控制按鍵28。其中，鏡頭2()經對焦後，用以掏取二= 影像S!。電餘合單元22祕於鏡頭2〇，用 j 成-數位影像S2。 〜切像轉 復參考第二A圖，曝光值計算處理單元23輪接 兀22 ’用以計細_彡像S2之曝紐，並產生相異於該曝二值 201015977 之至少一相異曝光值之數位影像S3。白平衡/對比度計算處理單元 25搞接電荷辆合單元22，用以計算該數位影像％之白平衡觸比 度並產生相異於該白平衡/對比度之至少一相異白平衡/對比度之 數位影，S4。子母影像處理單元％搞接於電荷齡單元π、曝 光值計算處理單元23、自平衡/對比度計算處理單元25及液晶顯 示面板26。 該子母影像處理單元24將數位影像S2顯示於液晶顯示面板 26之母晝面，以及將相異曝光值之數位影像％或相異白平衡/對 φ，度之數位影像％顯示於液晶顯示面板％之子晝面中，以供至 少-使用者預視。前述的相異白平衡/對比度之數位影像s4包括一 相異白平衡之數位影像與—相異對比度之數位影像。 、復參考第二A圖’記憶單元27耦接於子母影像處理單元24， 用以儲存數位影像S2、相異曝光值之數位影像S3及相異白平衡/ 對比度之紐f彡像S4。控制賊28祕於子母影減理單元24， 用以控制子母影像處理單元24執行各種選單項目的選取。 配*3第一 A圖，參考第三圖，為本發明具有曝光值預視功能 ❹ j位械之子母晝面示意圖。參照第三圖，數位減2藉由執 視模式’進而在液晶顯示面板26上展示出一母晝面泥、 子晝® 264及第二子晝面266。此時，預視模式提供液晶顯示 ^ 26展示相異曝光值之數位影像S3在第-子晝面264與第二 |面266 ’以及展示數位影像幻在母畫面262中。其中，母晝 2 262展不有曝光值〇EV的數位影像％，而第一子晝面2私展示 =光值-1EV的數位影像S3 ’第二子畫面266展示有曝光值+ 的數位影像S3。 此使用者即可以藉由第一子畫面264與第二子畫面266， 以預視曝光值-1EV的數位影像S3與曝光值+1EV的數位影像 7 201015977 ft 者可以藉峨㈣按鍵28以控制子母影 -此日t，第7^金5周整母晝面262所展示的數位影像S2的曝光值， 此日寸，弟一子晝面264與筮蚩品〆 .以改變所展示數位影像S2t^·； 據一曝先值級距， 復參考第三圖，當調整母晝面施所展 參 =ΓΓ:的數位影像S3，而第二子晝面266則依據該 展不出曝光值為猶的數位影像S3。另外，當調 日^母第^^2所展示的數位影像％的曝光值從〇ev減為-㈣ |面264依據該曝光值級距，展示出曝光值為-2EV的 光第二子晝面266則依據該曝光值級距，展示出曝 光值為0EV的數位影像S3。 的數二!^二工八圖，參考第四圖，為本發明具有白平衡預視功能 行該預視示ΐ圖:麵第四圖’數位相機2藉由執 、 液晶顯示面板26上展示出一母晝面262、 _ 面細。此時，預視模式提供液晶顯示面板26展示相異 ，=之數位影像S4在複數子畫面，以及展示數位影像幻 德面^62中。其中’母晝面262展示有預設白平衡的數位影 而複數子晝面268展示包括有鶴絲燈、日光燈、螢光燈、 數1二'。陰天及自轉光源下白平衡修正後的相異白平衡之 此’使用者即可以藉由複數子畫面268 ’用以預視各類白 ^正後相異白平衡之數位影像S4的絲。並且，使用者可以 :作控制按鍵28以控制子母影像處理單元24,根據複數子晝 68 +相異白平衡之數位影像s4，以設定母畫面脱中的 景，像S2。 8 201015977 配合第二A圖，參考第五圖，為本發明具有對比度預視功能 的數位相機之子母晝面示意圖。參照第五圖，數位相機2藉由執 行該預視模式’進而在液晶顯示面板26上展示出一母畫面加、 複數子畫面267。此時，預視模式提供液晶顯示面板％展示相異 對比度之數位影像S4在複數子晝面267，以及展示數位影像％ 在母晝面2—62中。其中，母晝面况展示有預設對比度的數位影 像S2 ’而複數子晝面267展示包括有高、低、普通對比度的相里 對比度之數位影像S4。 /、 ❹ 彡此’使用者即可以藉由複數子畫面267，用以預視各類對 比度的相異對比度之數位影像S4的效果。並且，使用者可 操作控制按鍵28以控制子母影像處理單元24康 ^ 中相騎比度之數位影像S4，以設定母畫面262中的數^ 右箱，合第二Μ，請參考第二B圖，係為本發明第二實施例具 力能隨位減方塊示細。在的 機2’的元件與第一實施例的數位相機2相同者a calculation processing unit, a self-balancing/contrast calculation processing unit, and a bribe display panel, wherein the sub-image processing unit displays the digital image on the mother side of the crystal display panel and images or images of the different exposure values are different The white balance/contrast digital image is displayed in the sub-picture of the liquid crystal display panel, so that at least y 'the memory unit __ the mother and child miscellaneous, the rib bribes the digital image, the contrast of the contrast is white balance Scale ratio reading (four) key ίί Γ 母 娜 处 处 处 , , , , , , , , , , , 影像 影像 影像 影像 影像 影像 影像 影像 影像 影像 影像 影像 影像 影像- 昼 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预 预The group of fiber project ^ two ',,, w ' project for the first time to insert H 疋 Ping to select interested projects, interested in drawing - the outline, and turn:::=: right, the eyes, · next Interested in the project and at least one different interest item 2 to = to: count = digital image of the different interest project in the child face ^ image in the mother painting, and display the phase Exposure-exposure value step-by-digit image in the silk surface and: digital image of the sub-昼5 201015977 value. In addition, when the item of interest is a white balance item, the digital image in the mother picture is adjusted according to the digital image of the different white balance in the sub-surface. Finally, when the selected item of interest is a contrast item, the digital image in the mother picture is adjusted according to the digital image of the contrast in the sub-surface. For example, ❿ % 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上In addition to displaying the contrast of the different exposure value (EV) effect, the sub-surface can also display the contrast of the white balance effect or the contrast effect of the Contrast effect. In order to solve the current digital camera, you can only adjust the exposure value (EV) to watch the change of the brightness of the image in the LCD, but not the difference between the exposure value (EV) and the shortcomings of the same picture. . The above summary and the following detailed description are exemplary in nature and are illustrative of the invention of the invention. Further advantages of the present invention will be set forth in the following description and drawings. [Embodiment] Please refer to FIG. 2A', which is a block diagram of a digital camera circuit having a preview function according to a first embodiment of the present invention. The digital camera 2 includes a -2 (1) charge-short w element 22, a liquid crystal display. The panel 26, the exposure value calculation processing unit α, the =/contrast calculation processing unit 25, a sub-image processing unit Μ, the age 27, and the control button 28. Among them, the lens 2 () is used to capture the second image S! The electric remnant unit 22 is secretive to the lens 2, and uses j to form a digital image S2. ~Cut image conversion refers to the second A picture, the exposure value calculation processing unit 23 rotates the 兀22' to measure the exposure of the image _彡S2, and generates at least one different exposure different from the exposure value 201015977 The digital image of the value S3. The white balance/contrast calculation processing unit 25 engages the charge-holding unit 22 for calculating the white balance touch of the digital image % and generating a digit different from the white balance/contrast by at least one phase white balance/contrast Shadow, S4. The sub-image processing unit % is connected to the charge age unit π, the exposure value calculation processing unit 23, the self-balancing/contrast calculation processing unit 25, and the liquid crystal display panel 26. The image processing unit 24 displays the digital image S2 on the mother side of the liquid crystal display panel 26, and displays the digital image of the different exposure value or the different white balance/pair φ, and the digital image % of the degree is displayed on the liquid crystal display. The panel is in the face of the child for at least - user preview. The aforementioned differential white balance/contrast digital image s4 includes a digital image of a different white balance and a digital image of a different contrast. The memory unit 27 is coupled to the sub-image processing unit 24 for storing the digital image S2, the digital image S3 of the different exposure value, and the different white balance/contrast image S4. The control thief 28 is secreted by the sub-matrix reduction unit 24 for controlling the sub-image processing unit 24 to perform selection of various menu items. With the first A picture of *3, referring to the third figure, it is a schematic diagram of the front view of the child with the exposure value pre-view function. Referring to the third figure, the digit minus 2 is displayed on the liquid crystal display panel 26 by the viewing mode' to display a mother's face mud, a child's face 264, and a second child's face 266. At this time, the preview mode provides a liquid crystal display. The digital image S3 showing the different exposure values is in the first-sub-surface 264 and the second-surface 266' and the digital image is displayed in the mother-picture 262. Among them, the mother 昼 2 262 exhibits no digital image % of the exposure value 〇 EV, and the first sub-surface 2 private display = digital image S3 of the light value -1 EV 'the second sub-picture 266 shows the digital image with the exposure value + S3. The user can use the first sub-picture 264 and the second sub-picture 266 to preview the digital image S3 with the exposure value -1 EV and the digital image of the exposure value + 1 EV. The 2010 image can be controlled by the (4) button 28 Son image - this day t, the 7th gold 5 weeks of the mother's face 262 shows the digital image S2 exposure value, this day, the younger brother and son 264 and 〆品〆. to change the displayed digits Image S2t^·; According to a pre-existing pre-level, refer to the third picture, when adjusting the digital image S3 of the female face, the second sub-surface 266 is based on the exposure. The value is the digital image S3 of Judah. In addition, when the exposure value of the digital image displayed by the day ^^^^2 is reduced from 〇ev to - (4) | face 264, according to the exposure value step, the second sub-photograph of the light having an exposure value of -2 EV is displayed. The surface 266 displays a digital image S3 having an exposure value of 0 EV according to the exposure value step. The number two! ^ two work eight map, refer to the fourth figure, the white balance preview function of the present invention, the preview view: the fourth picture of the digital camera 2 is displayed on the LCD panel 26 Out of a female face 262, _ face is fine. At this time, the preview mode provides the liquid crystal display panel 26 to display the difference, the digital image S4 is in the plurality of sub-pictures, and the digital image phantom surface 62 is displayed. The 'female face 262 shows a digital image with a preset white balance and the plurality of face 268 displays include a crane lamp, a fluorescent lamp, a fluorescent lamp, and a number one two. The white balance of the white balance after the correction of the white balance and the self-rotation light source can be used by the user to preview the lines of the digital image S4 of the various types of white and rear contrast white balance. Further, the user can: control the button 28 to control the sub-image processing unit 24, and set the scene of the mother screen to be off, according to the digital image s4 of the complex sub-white balance. 8 201015977 With reference to the second A picture, referring to the fifth figure, it is a schematic diagram of the mother-child face of the digital camera with the contrast pre-view function of the present invention. Referring to the fifth figure, the digital camera 2 displays a mother picture plus and a plurality of sub-pictures 267 on the liquid crystal display panel 26 by executing the preview mode. At this time, the preview mode provides that the liquid crystal display panel % displays the contrast image of the digital image S4 in the plurality of sub-surfaces 267, and displays the digital image % in the parent side surface 2-62. Among them, the mother face condition shows a digital image S2' having a preset contrast and the plurality of facets 267 display a digital image S4 including phase contrast in high, low, and normal contrast. The user can use the plurality of sub-pictures 267 to preview the effect of the digital contrast image S4 of different contrasts of various contrast ratios. Moreover, the user can operate the control button 28 to control the digital image S4 of the phase-fitting ratio of the mother-child image processing unit 24 to set the number of the right frame in the parent screen 262, and the second frame, please refer to the second Figure B is a diagram showing the force of the second embodiment of the present invention. The components of the machine 2' are the same as those of the digital camera 2 of the first embodiment.
It: 例的數位相機2’與第-實施例的數位相機2 實;^ 原理與達成的功效相同，其主要的差異處在於：第二 移除:：位:機2,將第一實施例的數位相機2的控制按鍵28 而问時，將液晶顯示面板26改為一觸控式面板％, =板抓用以控制子母影像處理單元24執行各種選單項^ 配δ第一 Α圖，參考第六圖，為本發明方4 一土 =:::係適用在前述數位相機2的預視 複數子畫面與-母畫面（⑽）。然後，使用者可以進入數3目^ 9 201015977 的預視項目的選單中（S12)，並利用控制按鍵28的操作以選取一 有興趣項目（S14)，該有興趣項目包括—曝光值項目、一白平衡 項目及一對比度項目。接下來，擷取一光學影像S卜並轉換該光 數位影像％ (S15)。接著，計算該數位影像S2 之有”趣貝目及至少-相異有興趣項目，以產生至少—相異有興 趣項目之數位影像’包括有相異曝紐之數位影像幻或相里白平 衡/對比度之數位影像S4(S16)。最後，根據有興趣項目的選擇，以 ❹ ❹ &在母畫面巾’以及展軸祕絲之數位影像 或，白平衡/對比度之數位影像S4在子畫面中（S17)。 前述步驟⑻6)中’當有興趣項目為曝光值項目時， 謂紐及減曝紐項目，料生姆㈣值德 象,Π·!金進而根據一曝光值級距，用以調整母晝面中的數位影 Ϊ，伟相異曝光值缝位影像％。同時，在步驟_ 飞畲“旦,可以利用控制按鍵28的操作，以調整母畫面262所展 ^一、位影像S2，此時，複數子畫面將依據曝光值級距，改變所 俊T數位影像S3，以提供使用者預視相異曝光值的 攝(3 用者依據母晝面中的數位影像S2執行拍 料S’前述步驟（S16)中，當有興趣項目為白平衡項目時， 衡之白平衡及相異白平衡項目，以產生相異白平 展干勺括ΓΓ4。母畫面將展示出數位影像S2,而複數子畫面則 展不包括有鎢絲燈、日丼糌、罄止收 .Α. 等光源下相異白平衡之_影^4^2二自動 畫面中的ϋ ft 平衡之數位影像s4，以調整母 制按鐘^像同時’在步驟(si7)後，使用者可以利用控 _建烈的操作，以挑選複數子晝面令相異白平衡的數 201015977 的其中之一，成為母畫面所展示的數位影像S2。最後，使用者依 據母畫面中的數位影像S2執行拍攝（S18)。 . 再者’前述步驟（S14)巾，當有興趣項目為對比度項目時， •係計算數位影像S2之對比度及相異對比度項目，以產生相異對比 度之數位影像S4。母晝面將展示出數位影像S2，而複數子畫面則 展示包括有高、低、普通等相異對比度之數位影像以，以提供使 用者預視。如此’使用者係可以根據子畫面中相異對比度之數位 影像S4 ’以調整母晝面中的數位影像S2。同時，在步驟⑻乃後， ❿使用者可以姻㈣按鍵28的操作，以挑選複數子畫面中相異對 比度，數位影像S4的其中之一，成為母畫面所展補數位影像 S2。最後，使用者依據母晝面中的數位影像S2執行拍攝（s⑻。 综上，本發明可直接在數位相機的LCD畫面上，比較相 光值(EV)的影像效果’讓使用者可以更方便的選擇適合的曝光^ 影像。子晝面除了可以顯示相異曝光值(EV)效果的晝自，也可以 顯示相異白平衡(White Mance)效果的晝面或相異對比度 (Contrast)效果的畫面等。以解決現階段的數位相機，只能藉由 ⑩調整曝光值(EV)後觀看到LCD中影像亮度的變化，而不能針對相 異曝光值(EV)的效果，在同—晝面直接觀看比較的缺點。 按，以上賴，鶴本發佳之具财關，惟本發明之 特徵並不紐於此’任何熟悉該項技藝者在本發明之領域内，可 輕易思及之變化或修飾，t可涵蓋在町本案之專利範 【圖式簡單說明】 第-圖為習知數位相機所制TFT_LCD^職魏電路方 塊不意圖，· 第二A圖，為本發明第—實施例具有預視功能的數位相機電 路方塊示意圖； 201015977 第二B圖，係為本發明第二實施例具有預視功能的數位相機 電路方塊示意圖； . 第二圖’為本發明具有曝光值預視功能的數位相機之子母晝 面示意圖； 第四圖’為本發明具有白平衡預視功能的數位相機之子母晝 面示意圖； 第五圖，為本發明具有對比度預視功能的數位相機之子母畫 面示意圖；及 春 第六圖為本發明方法流程示意圖。 【主要元件符號說明】 習知： 物體影像105 攝影裴置110 電壓信號115 色彩過濾陣列120 三原色信號125 ® 自平衡電路130 影像信號 135、145、155、165、175、185 色彩修正電路140 TFT-LCD 190 迦瑪修正電路150 色相轉換電路160 邊緣強化電路170 平面影像調整電路180 本發明： 數位相機2、2， 12 201015977 鏡頭20 電荷耦合單元22 曝光值計算處理單元23 子母影像處理單元24 白平衡/對比度計算處理單元25 液晶顯不面板26 記憶單元27 控制按鍵28 光學影像S1 數位影像S2 相異曝光值之數位影像S3 相異白平衡/對比度之數位影像S4 觸控式面板26’ 母晝面262 子晝面 264、266、267、268It: the digital camera 2' of the example is the same as the digital camera 2 of the first embodiment; the principle is the same as the achieved effect, the main difference is: the second removal:: bit: machine 2, the first embodiment When the control button 28 of the digital camera 2 is used, the liquid crystal display panel 26 is changed to a touch panel %, and the board is used to control the image processing unit 24 to execute various menu items. Referring to the sixth figure, the present invention is applied to the pre-view complex sub-picture and the mother picture ((10)) of the aforementioned digital camera 2. Then, the user can enter the menu of the preview item of the number 3 201015977 (S12), and use the operation of the control button 28 to select an item of interest (S14), the item of interest includes an exposure value item, A white balance item and a contrast item. Next, an optical image S is captured and the light digital image % is converted (S15). Then, the digital image S2 is calculated to have "fun and at least - different interest items to generate at least - different digital images of different interest items" including digital image illusion or phase white balance with different exposures / Contrast digital image S4 (S16). Finally, according to the selection of the item of interest, ❹ ❹ & in the mother picture towel 'and the digital image of the axis of the axis or the white balance / contrast digital image S4 in the sub-picture Medium (S17). In the above step (8) 6), when the item of interest is the exposure value item, the new and negative exposure items are used, and the raw (4) value of the German image, Π·! gold is further used according to an exposure value step. In order to adjust the digital image in the mother face, the difference of the exposure value is %. At the same time, in the step _ fly, the operation of the control button 28 can be used to adjust the position of the mother screen 262. Image S2, at this time, the plurality of sub-pictures will change the T-digit image S3 according to the exposure value step to provide the user to preview the different exposure values (3 users perform according to the digital image S2 in the mother's face) In the aforementioned step (S16) of the shot S', when there is an interest item For the white balance project, balance the white balance and the different white balance items to produce a different white flat display. The mother screen will display the digital image S2, while the multiple sub-pictures will not include the tungsten light.丼糌 丼糌 罄 Α Α Α 等 等 等 等 等 等 等 等 等 等 等 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ 自动 自动 自动 自动 自动 自动 自动 自动 自动 自动 平衡 平衡 平衡 平衡 平衡 平衡 平衡 平衡 平衡 平衡 平衡After si7), the user can use the control _ Jianlie operation to select one of the numbers 201015977 of the multiple white balance to become the digital image S2 displayed on the mother screen. Finally, the user according to the mother The digital image S2 in the screen performs shooting (S18). Further, in the foregoing step (S14), when the item of interest is a contrast item, • the contrast and the contrast ratio item of the digital image S2 are calculated to generate a difference. Contrast digital image S4. The female side will display the digital image S2, while the multiple sub-pictures will display digital images including high, low, normal and other contrasts to provide user preview. Can be based on sub paintings The digital image S4' of the contrast in contrast is used to adjust the digital image S2 in the mother face. Meanwhile, after the step (8), the user can perform the operation of the button (28) to select the contrast in the plurality of sub-pictures. One of the digital images S4 becomes the complementary digital image S2 of the mother image. Finally, the user performs shooting according to the digital image S2 in the mother's face (s(8). In summary, the present invention can be directly on the LCD screen of the digital camera. Comparing the image effect of the phase light value (EV)' allows the user to select the appropriate exposure image for more convenient. In addition to displaying the effect of the different exposure value (EV), the sub-surface can also display different whites. A picture of the Balance (White Mance) effect or a contrast-like contrast (Contrast) effect. In order to solve the current digital camera, the brightness of the image in the LCD can only be watched by adjusting the exposure value (EV) by 10, and the effect of the different exposure value (EV) cannot be directly observed. Shortcomings. According to the above, the crane is good, but the characteristics of the invention are not related to this. Anyone who is familiar with the art can easily change or modify it in the field of the invention. The patent model of the present invention [simple description of the drawings] The first figure is a TFT_LCD system of the conventional digital camera, which is not intended, and the second A picture is a digital camera circuit with a preview function according to the first embodiment of the present invention. Block diagram; 201015977 FIG. 2B is a block diagram of a digital camera circuit with a preview function according to a second embodiment of the present invention; FIG. 2 is a schematic diagram of a child-facing surface of a digital camera with an exposure value preview function according to the present invention; The fourth figure is a schematic diagram of the mother-in-law of the digital camera with the white balance preview function of the present invention; the fifth figure is a schematic diagram of the mother-child picture of the digital camera with the contrast preview function; and the sixth picture of the spring Schematic diagram of the process of the invention. [Main component symbol description] Conventional: Object image 105 Photographic device 110 Voltage signal 115 Color filter array 120 Three primary color signals 125 ® Self-balancing circuit 130 Image signals 135, 145, 155, 165, 175, 185 Color correction circuit 140 TFT- LCD 190 Gamma correction circuit 150 Hue phase conversion circuit 160 Edge enhancement circuit 170 Planar image adjustment circuit 180 The present invention: Digital camera 2, 2, 12 201015977 Lens 20 Charge coupled unit 22 Exposure value calculation processing unit 23 Sub-image processing unit 24 White Balance/Contrast Calculation Processing Unit 25 LCD Display Panel 26 Memory Unit 27 Control Button 28 Optical Image S1 Digital Image S2 Digital Image of Different Exposure Value S3 Differentiated White Balance/Contrast Digital Image S4 Touch Panel 26' Female Face 262 face 264, 266, 267, 268
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