TWI457855B - Image adjusting apparatus and image adjusting method - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/37—Details of the operation on graphic patterns
- G09G5/373—Details of the operation on graphic patterns for modifying the size of the graphic pattern
Description
本發明係與影像調整有關，特別是關於一種能夠動態地自動旋轉縮放影像的影像調整裝置及影像調整方法。The present invention relates to image adjustment, and more particularly to an image adjustment apparatus and an image adjustment method capable of dynamically rotating a zoomed image automatically.
近年來，隨著科技不斷地演進，影像處理技術也發展得相當迅速。舉例而言，影像處理技術中的影像縮放(scaling)功能及影像旋轉(rotation)功能早已被廣泛地應用於各種影像顯示裝置(例如液晶顯示器、電漿顯示器等)。In recent years, with the continuous evolution of technology, image processing technology has also developed quite rapidly. For example, image scaling and image rotation in image processing technology have been widely used in various image display devices (such as liquid crystal displays, plasma displays, etc.).
就影像的縮放功能而言，由於影像輸入裝置所輸入之影像的解析度不一定能夠完全與影像顯示裝置所顯示之影像的解析度相符，因此，影像顯示裝置往往需要透過影像縮放器(scaler)對於影像輸入裝置所輸入的影像進行必要的縮放處理，藉以使得處理後的影像能夠滿足影像顯示裝置對於影像解析度之需求，使用者也才能夠透過影像顯示裝置欣賞到清晰的影像畫面。As for the zoom function of the image, since the resolution of the image input by the image input device does not necessarily match the resolution of the image displayed by the image display device, the image display device often needs to pass through the image scaler. The necessary scaling processing is performed on the image input by the image input device, so that the processed image can satisfy the image resolution device's requirement for image resolution, and the user can enjoy the clear image image through the image display device.
至於影像的旋轉功能則大多應用於某些特殊情況下，例如當影像顯示裝置受到空間之限制而無法正向架設時，或是當影像顯示裝置受到探照角度之限制而無法固定正向輸入影像時等特殊情況下。As for the image rotation function, it is mostly used in some special cases, such as when the image display device is limited by space and cannot be erected, or when the image display device is limited by the search angle, the forward input image cannot be fixed. When special circumstances are required.
一般而言，目前的影像調整程序大多交由顯示卡或中央處理器(CPU)進行運算輸出，然而，對於非電腦輸出的影像來源，亦即不具有顯示卡及中央處理器的影像輸入裝置來說，目前仍尚未有任何簡易又成本低廉的解決方案可供使用。Generally speaking, most of the current image adjustment programs are outputted by a display card or a central processing unit (CPU). However, for non-computer output image sources, that is, image input devices without a display card and a central processing unit. It is said that there are still no simple and low-cost solutions available.
此外，目前的影像縮放器在進行影像縮放處理時仍具有相當多的限制。舉例而言，除了需要固定影像顯示裝置的解析度之外，使用者還必須事先設定好影像縮放因子，以供影像縮放器進行影像的縮放，例如習知專利(Patent No. US7551231B2)所述需固定螢幕解析度並事先設定好縮放因子，亦即目前的影像縮放器仍無法真正達到動態地自動旋轉縮放影像之功能。In addition, current image scalers still have considerable limitations in performing image scaling processing. For example, in addition to the resolution of the image display device, the user must also set the image scaling factor in advance for the image scaler to perform image scaling, such as described in the conventional patent (Patent No. US7551231B2). Fix the screen resolution and set the zoom factor in advance, that is, the current image scaler still can't really achieve the function of dynamically rotating the zoom image automatically.
因此，本發明之一範疇在於提出一種影像調整裝置及影像調整方法，以解決先前技術所遭遇到之上述種種問題。Therefore, one aspect of the present invention is to provide an image adjusting device and an image adjusting method to solve the above problems encountered in the prior art.
於一具體實施例中，影像調整裝置係設置於影像輸入裝置及影像顯示裝置之間，用以自影像輸入裝置接收輸入影像並產生輸出影像至影像顯示裝置。影像調整裝置包含第一解析度偵測模組、第二解析度偵測模組、自動縮放係數產生模組、自動縮放模組及影像旋轉模組。其中，第一解析度偵測模組電性連接至影像輸入裝置；第二解析度偵測模組電性連接至影像顯示裝置；自動縮放係數產生模組電性連接至第一解析度偵測模組及第二解析度偵測模組；自動縮放模組電性連接至自動縮放係數產生模組；影像旋轉模組電性連接至自動縮放模組。In one embodiment, the image adjustment device is disposed between the image input device and the image display device for receiving an input image from the image input device and generating an output image to the image display device. The image adjusting device comprises a first resolution detecting module, a second resolution detecting module, an automatic zoom coefficient generating module, an automatic zooming module and an image rotating module. The first resolution detection module is electrically connected to the image input device; the second resolution detection module is electrically connected to the image display device; and the automatic scaling coefficient generation module is electrically connected to the first resolution detection The module and the second resolution detection module; the automatic zoom module is electrically connected to the automatic zoom coefficient generation module; and the image rotation module is electrically connected to the automatic zoom module.
第一解析度偵測模組係用以偵測影像輸入裝置所輸入的輸入影像之第一訊號；第二解析度偵測模組係用以偵測影像顯示裝置之第二訊號；自動縮放係數產生模組係用以根據第一訊號及第二訊號產生自動縮放係數；自動縮放模組係用以根據自動縮放係數調整輸入影像之大小；影像旋轉模組係用以旋轉輸入影像之角度。The first resolution detection module is configured to detect the first signal of the input image input by the image input device; the second resolution detection module is configured to detect the second signal of the image display device; the automatic scaling factor The generating module is configured to generate an automatic scaling factor according to the first signal and the second signal; the automatic zooming module is configured to adjust the size of the input image according to the automatic zooming factor; and the image rotating module is configured to rotate the angle of the input image.
於實際應用中，第一解析度偵測模組可包含儲存單元及偵測單元。儲存單元係用以儲存顯示器計時表(Display Monitor Timing table)。偵測單元係用以偵測輸入影像之第一訊號，第一訊號包含水平同步訊號及垂直同步訊號，偵測單元並自顯示器計時表尋找出相對應的第一水平解析度及第一垂直解析度。In a practical application, the first resolution detection module can include a storage unit and a detection unit. The storage unit is used to store a Display Monitor Timing table. The detecting unit is configured to detect the first signal of the input image, the first signal includes a horizontal synchronization signal and a vertical synchronization signal, and the detecting unit searches for the corresponding first horizontal resolution and the first vertical resolution from the display chronograph. degree.
此外，自動縮放係數產生模組可包含縮放比計算單元及縮放係數產生單元。縮放比計算單元係用以根據第一訊號及第二訊號計算出縮放比。縮放係數產生單元係用以根據縮放比產生自動縮放係數至自動縮放模組。In addition, the automatic scaling coefficient generation module may include a scaling ratio calculation unit and a scaling coefficient generation unit. The scaling ratio calculation unit is configured to calculate a scaling ratio according to the first signal and the second signal. The scaling factor generation unit is configured to generate an automatic scaling factor to the automatic scaling module according to the scaling ratio.
於另一具體實施例中，影像調整方法係用以自影像輸入裝置接收輸入影像並產生輸出影像至影像顯示裝置。影像調整方法包含下列步驟：(a)偵測輸入影像之第一訊號；(b)偵測影像顯示裝置之第二訊號；(c)根據第一訊號及第二訊號產生自動縮放係數；(d)根據自動縮放係數調整輸入影像之大小；(e)根據影像旋轉模組旋轉輸入影像之角度或根據外部旋轉控制訊號旋轉輸入影像之角度，以產生輸出影像。In another embodiment, the image adjustment method is for receiving an input image from the image input device and generating an output image to the image display device. The image adjustment method comprises the following steps: (a) detecting the first signal of the input image; (b) detecting the second signal of the image display device; (c) generating an automatic scaling factor according to the first signal and the second signal; Adjusting the size of the input image according to the automatic zoom factor; (e) rotating the angle of the input image according to the image rotation module or rotating the angle of the input image according to the external rotation control signal to generate an output image.
於另一具體實施例中，影像調整方法係用以自影像輸入裝置接收輸入影像並產生輸出影像至影像顯示裝置。影像調整方法包含下列步驟：(a)偵測輸入影像之第一訊號；(b)偵測影像顯示裝置之第二訊號；(c)根據第一訊號及第二訊號產生自動縮放係數；(d)根據影像旋轉模組旋轉輸入影像之角度或根據外部旋轉控制訊號旋轉輸入影像之角度；(e)根據自動縮放係數調整輸入影像之大小，以產生輸出影像。In another embodiment, the image adjustment method is for receiving an input image from the image input device and generating an output image to the image display device. The image adjustment method comprises the following steps: (a) detecting the first signal of the input image; (b) detecting the second signal of the image display device; (c) generating an automatic scaling factor according to the first signal and the second signal; Rotating the angle of the input image according to the image rotation module or rotating the angle of the input image according to the external rotation control signal; (e) adjusting the size of the input image according to the automatic scaling factor to generate an output image.
相較於先前技術，根據本發明之影像調整裝置及影像調整方法能夠動態地自動偵測影像輸入裝置所輸入之輸入影像的解析度以及影像顯示裝置所顯示之輸出影像的解析度，並據以產生自動縮放係數後，自動縮放模組根據自動縮放係數自動調整輸出影像之大小，還可進一步搭配影像旋轉之功能，實現自動縮放並旋轉影像之目的。Compared with the prior art, the image adjusting device and the image adjusting method according to the present invention can automatically and automatically detect the resolution of the input image input by the image input device and the resolution of the output image displayed by the image display device, and After the automatic scaling factor is generated, the automatic zooming module automatically adjusts the size of the output image according to the automatic scaling factor, and can further cooperate with the image rotation function to achieve the purpose of automatically scaling and rotating the image.
因此，即使每次的輸入影像及輸出影像之解析度可能會隨著影像輸入裝置及影像顯示裝置的不同而有所差異，但透過本發明之影像調整裝置及影像調整方法，使用者不必額外進行任何設定，即可輕易地達到影像旋轉後自動縮放或影像自動縮放後旋轉之功能，故可大幅簡化使用者調整影像時之操作流程並縮短其操作時間。Therefore, even if the resolution of the input image and the output image may vary from image input device to image display device, the image adjusting device and the image adjusting method of the present invention do not need to be additionally performed by the user. Any setting can easily achieve the function of automatic zooming after image rotation or automatic zooming after image rotation, which greatly simplifies the operation flow and shortens the operation time of the user when adjusting the image.
關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.
根據本發明之一較佳具體實施例為一種影像調整裝置。於此實施例中，影像調整裝置係設置於影像輸入裝置及影像顯示裝置之間，用以自影像輸入裝置接收輸入影像並產生輸出影像至影像顯示裝置。A preferred embodiment of the present invention is an image adjustment device. In this embodiment, the image adjustment device is disposed between the image input device and the image display device for receiving an input image from the image input device and generating an output image to the image display device.
實際上，影像輸入裝置與影像顯示裝置的種類並無特定之限制，舉例而言，影像輸入裝置可以是電腦、遊戲器主機、DVD播放器、VCD播放器或其他類似的電子裝置；至於影像顯示裝置則可以是液晶顯示器、電漿顯示器或其他類似的顯示裝置。In fact, the types of image input devices and image display devices are not particularly limited. For example, the image input device may be a computer, a game console, a DVD player, a VCD player, or the like. The device can then be a liquid crystal display, a plasma display or other similar display device.
請參照第1圖，第1圖係繪示此實施例之影像調整裝置的功能方塊圖。如第1圖所示，影像調整裝置1係電性連接於影像輸入裝置2與影像顯示裝置3之間，影像調整裝置1將會自影像輸入裝置2接收輸入影像，並且產生輸出影像至影像顯示裝置3。舉例而言，影像調整裝置1可以是一元件可程式邏輯閘陣列(Field Programmable Gate Array,FPGA)，但不以此為限。此外，影像顯示裝置3亦電性連接至視訊訊號源4，視訊訊號源4係用以提供視訊訊號(例如廣告視訊，但不以此為限)至影像顯示裝置3。Please refer to FIG. 1 , which is a functional block diagram of the image adjusting device of this embodiment. As shown in FIG. 1 , the image adjusting device 1 is electrically connected between the image input device 2 and the image display device 3 , and the image adjusting device 1 receives the input image from the image input device 2 and generates an output image to the image display. Device 3. For example, the image adjustment device 1 may be a component programmable gate array (FPGA), but is not limited thereto. In addition, the image display device 3 is also electrically connected to the video signal source 4, and the video signal source 4 is used to provide a video signal (for example, advertising video, but not limited thereto) to the image display device 3.
其中，影像調整裝置1與影像輸入裝置2之間的訊號傳輸介面可以是HDMI/DVI介面、顯示連接埠(DisplayPort)介面、D-Sub介面或AV合成/S-Video介面，但不以此為限。至於影像調整裝置1與影像顯示裝置3之間的訊號傳輸介面可以是HDMI/DVI介面、顯示連接埠介面或D-Sub介面，但亦不以此為限。The signal transmission interface between the image adjusting device 1 and the image input device 2 may be an HDMI/DVI interface, a DisplayPort interface, a D-Sub interface, or an AV composite/S-Video interface, but limit. The signal transmission interface between the image adjustment device 1 and the image display device 3 may be an HDMI/DVI interface, a display interface or a D-Sub interface, but is not limited thereto.
於此實施例中，影像調整裝置1包含第一解析度偵測模組10、第二解析度偵測模組11、自動縮放係數產生模組12、自動縮放模組13及影像旋轉模組14。其中，第一解析度偵測模組10係電性連接影像輸入裝置2及自動縮放係數產生模組12；第二解析度偵測模組11係電性連接自動縮放係數產生模組12及影像顯示裝置3；自動縮放係數產生模組12係電性連接第一解析度偵測模組10、第二解析度偵測模組11及自動縮放模組13；自動縮放模組13係電性連接影像輸入裝置2、自動縮放係數產生模組12及影像旋轉模組14；影像旋轉模組14係電性連接影像顯示裝置3、自動縮放模組13及設置於影像調整裝置1外的外部旋轉控制器15。In this embodiment, the image adjustment device 1 includes a first resolution detection module 10, a second resolution detection module 11, an automatic scaling coefficient generation module 12, an automatic zoom module 13, and an image rotation module 14 . The first resolution detection module 10 is electrically connected to the image input device 2 and the automatic scaling coefficient generation module 12; the second resolution detection module 11 is electrically connected to the automatic scaling coefficient generation module 12 and the image. The display unit 3 is electrically connected to the first resolution detection module 10, the second resolution detection module 11 and the automatic zoom module 13; the automatic zoom module 13 is electrically connected. The image input device 2, the automatic zoom factor generation module 12 and the image rotation module 14; the image rotation module 14 is electrically connected to the image display device 3, the automatic zoom module 13, and the external rotation control disposed outside the image adjustment device 1 Device 15.
值得注意的是，由於此實施例之影像調整裝置1中之影像旋轉模組14係電性連接於影像顯示裝置3與自動縮放模組13之間，代表此實施例中之輸入影像係先透過自動縮放模組13進行自動縮放之後，再經由影像旋轉模組14進行旋轉而成為輸出至影像顯示裝置3的輸出影像。接下來，將分別就影像調整裝置1所包含之各模組具備的功能進行詳細的介紹。It is to be noted that the image rotation module 14 in the image adjustment device 1 of the embodiment is electrically connected between the image display device 3 and the automatic zoom module 13, and the input image in the embodiment is transmitted first. After the automatic zoom module 13 performs automatic zooming, it is rotated by the image rotation module 14 to be an output image output to the image display device 3. Next, the functions of each module included in the image adjusting device 1 will be described in detail.
第一解析度偵測模組10係用以偵測影像輸入裝置2所輸入的輸入影像之第一訊號。於實際應用中，影像輸入裝置2所輸入的輸入影像之種類及格式並無特定之限制，例如BMP格式、JPG格式或其他影像格式。請參照第2A圖，第2A圖係繪示第1圖中之第一解析度偵測模組10的詳細功能方塊圖。The first resolution detecting module 10 is configured to detect a first signal of the input image input by the image input device 2. In practical applications, there is no specific limitation on the type and format of the input image input by the image input device 2, such as BMP format, JPG format or other image formats. Please refer to FIG. 2A. FIG. 2A is a detailed functional block diagram of the first resolution detecting module 10 in FIG. 1 .
如第2A圖所示，第一解析度偵測模組10包含彼此電性連接的儲存單元100及偵測單元102。其中，儲存單元100係用以儲存顯示器計時表，顯示器計時表中記錄有對應於不同水平同步訊號及垂直同步訊號的水平解析度及垂直解析度。當第一解析度偵測模組10接收到輸入影像的第一訊號時，偵測單元102將會偵測第一訊號中之水平同步訊號及垂直同步訊號，並自儲存單元100所儲存之顯示器計時表尋找出相對應的第一水平解析度及第一垂直解析度。舉例而言，偵測單元102所偵測到的輸入影像之第一水平解析度及第一垂直解析度可以是2400X1600個像素，但不以此為限。As shown in FIG. 2A, the first resolution detection module 10 includes a storage unit 100 and a detection unit 102 that are electrically connected to each other. The storage unit 100 is configured to store a display chronograph, and the display chronograph records horizontal resolution and vertical resolution corresponding to different horizontal synchronization signals and vertical synchronization signals. When the first resolution detecting module 10 receives the first signal of the input image, the detecting unit 102 detects the horizontal synchronization signal and the vertical synchronization signal in the first signal, and the display stored in the storage unit 100 The chronograph finds a corresponding first horizontal resolution and first vertical resolution. For example, the first horizontal resolution and the first vertical resolution of the input image detected by the detecting unit 102 may be 2400×1600 pixels, but not limited thereto.
於實際應用中，儲存單元100所儲存的可以是常見的視訊電子標準協會(VESA)離散顯示器計時表，如第2B圖所示。由第2B圖可知，若輸入影像之水平同步訊號的頻率為43.3千兆赫，且輸入影像之垂直同步訊號的頻率為85赫茲，則可以得到第一水平解析度為640個像素，第一垂直解析度為480個像素，但不以此為限。In practical applications, the storage unit 100 may store a common Video Electronics Standards Association (VESA) discrete display chronograph, as shown in FIG. 2B. It can be seen from Fig. 2B that if the frequency of the horizontal sync signal of the input image is 43.3 GHz and the frequency of the vertical sync signal of the input image is 85 Hz, the first horizontal resolution is 640 pixels, and the first vertical resolution is obtained. The degree is 480 pixels, but not limited to this.
如第2C圖所示，第二解析度偵測模組11係自影像顯示裝置3接收第二訊號，並根據第二訊號得到影像顯示裝置3之第二水平解析度及第二垂直解析度。舉例而言，影像顯示裝置3之第二水平解析度及第二垂直解析度可以是640個像素及480個像素，但不以此為限。實際上，第二解析度偵測模組11所接收之第二訊號即為對應於影像顯示裝置3之延伸顯示識別資料(Extended Display Identification Data,EDID)。As shown in FIG. 2C, the second resolution detecting module 11 receives the second signal from the image display device 3, and obtains the second horizontal resolution and the second vertical resolution of the image display device 3 according to the second signal. For example, the second horizontal resolution and the second vertical resolution of the image display device 3 may be 640 pixels and 480 pixels, but not limited thereto. In fact, the second signal received by the second resolution detecting module 11 is an Extended Display Identification Data (EDID) corresponding to the image display device 3.
所謂的延伸顯示識別資料(EDID)係指螢幕解析度的資料，包括廠商名稱與生產序號。一般而言，延伸顯示識別資料(EDID)大多儲存於顯示器的可程式化唯讀記憶體(Programmable Read-Only Memory,PROM)或電子抹除式可程式化唯讀記憶體(Electrically Erasable Programmable Read-Only Memory,EEPROM)內，通常都是透過I2 C匯流排進行延伸顯示識別資料之讀取。目前的HDMI 1.0-1.3c係使用延伸顯示識別資料(EDID)結構1.3版。The so-called Extended Display Identification Data (EDID) refers to the resolution of the screen, including the manufacturer's name and production serial number. In general, Extended Display Identification Data (EDID) is mostly stored in a Displayable Read-Only Memory (PROM) or Electronically Erasable Programmable Read- In Only Memory (EEPROM), it is usually read through the I 2 C bus bar to display the identification data. The current HDMI 1.0-1.3c uses the Extended Display Identification Data (EDID) structure version 1.3.
自動縮放係數產生模組12係用以根據第一解析度(例如為2400X1600個像素)及第二解析度(例如為640X480個像素)產生自動縮放係數。請參照第2D圖，第2D圖係繪示第1圖中之自動縮放係數產生模組12的詳細功能方塊圖。如第2D圖所示，自動縮放係數產生模組12包含彼此電性連接的縮放比計算單元120及縮放係數產生單元122。其中，縮放比計算單元120電性連接至第一解析度偵測模組10及第二解析度偵測模組11；縮放係數產生單元122電性連接至縮放比計算單元120及自動縮放模組13。The automatic scaling factor generation module 12 is configured to generate an automatic scaling factor based on a first resolution (eg, 2400 X 1600 pixels) and a second resolution (eg, 640×480 pixels). Please refer to FIG. 2D. FIG. 2D is a detailed functional block diagram of the automatic scaling coefficient generation module 12 in FIG. 1 . As shown in FIG. 2D, the automatic scaling coefficient generation module 12 includes a scaling ratio calculation unit 120 and a scaling coefficient generation unit 122 that are electrically connected to each other. The scaling ratio calculating unit 120 is electrically connected to the first resolution detecting module 10 and the second resolution detecting module 11; the scaling coefficient generating unit 122 is electrically connected to the scaling ratio calculating unit 120 and the automatic zooming module. 13.
於此實施例中，當縮放比計算單元120根據第一訊號及第二訊號計算出縮放比(scaling ratio)後，縮放係數產生單元122根據縮放比產生自動縮放係數(auto-scaling coefficient)至自動縮放模組13。舉例而言，若影像顯示裝置3最大的解析度只有640X480個像素，但輸入影像之第一水平解析度及第一垂直解析度為2400X1600個像素，故水平自動縮放係數為640/2400=0.267且垂直自動縮放係數為480/1600=0.3，使得最後輸入影像可配合影像顯示裝置3之解析度而輸出為640X480個像素。In this embodiment, after the scaling ratio calculating unit 120 calculates a scaling ratio according to the first signal and the second signal, the scaling coefficient generating unit 122 generates an auto-scaling coefficient to the automatic according to the scaling ratio. Zoom module 13. For example, if the maximum resolution of the image display device 3 is only 640×480 pixels, but the first horizontal resolution and the first vertical resolution of the input image are 2400×1600 pixels, the horizontal automatic scaling factor is 640/2400=0.267 and The vertical auto scaling factor is 480/1600=0.3, so that the last input image can be output to 640×480 pixels in accordance with the resolution of the image display device 3.
當自動縮放模組13接收到自動縮放係數時，自動縮放模組13將會根據自動縮放係數調整輸入影像之大小並將縮放後之輸入影像輸出至影像旋轉模組14。當外部旋轉控制器15根據使用者動作產生外部旋轉控制訊號至影像旋轉模組14時，影像旋轉模組14將會根據外部旋轉控制訊號旋轉該輸入影像之角度。藉此，即使是在影像顯示裝置3受到空間之限制而無法正向架設，或是影像顯示裝置3受到探照角度之限制而無法固定正向輸入影像的特殊情況下，影像顯示裝置3仍可顯示自動縮放旋轉後的輸出影像，以利使用者欣賞。When the automatic zoom module 13 receives the automatic zoom factor, the automatic zoom module 13 will adjust the size of the input image according to the automatic zoom factor and output the scaled input image to the image rotation module 14. When the external rotation controller 15 generates an external rotation control signal to the image rotation module 14 according to the user action, the image rotation module 14 will rotate the angle of the input image according to the external rotation control signal. Therefore, even in the special case where the image display device 3 is limited by the space and cannot be erected in the forward direction, or the image display device 3 is limited by the search angle and the forward input image cannot be fixed, the image display device 3 can still be used. The output image of the auto-zoom rotation is displayed for the user to enjoy.
於實際應用中，外部旋轉控制器15可以是設置於影像調整裝置1外部的按鍵或按鈕，以供使用者按壓而產生外部旋轉控制訊號，但不以此為限。In an actual application, the external rotation controller 15 may be a button or a button disposed outside the image adjustment device 1 for the user to press to generate an external rotation control signal, but is not limited thereto.
上述影像調整裝置1之架構係先透過自動縮放模組13對輸入影像進行自動縮放後，再透過影像旋轉模組14旋轉該輸入影像之角度，以產生最後輸出至影像顯示裝置3的輸出影像。實際上，於另一較佳具體實施例中，本發明之影像調整裝置亦可先旋轉輸入影像後，再將旋轉後的輸入影像自動縮放為最後輸出至影像顯示裝置的輸出影像。請參照第3圖，第3圖係繪示本發明之另一較佳具體實施例之影像調整裝置的功能方塊圖。The image adjusting device 1 is configured to automatically zoom the input image through the automatic zoom module 13 and then rotate the angle of the input image through the image rotating module 14 to generate an output image that is finally output to the image display device 3. In fact, in another preferred embodiment, the image adjusting device of the present invention may first rotate the input image and then automatically scale the rotated input image to the output image finally output to the image display device. Please refer to FIG. 3, which is a functional block diagram of an image adjusting apparatus according to another preferred embodiment of the present invention.
如第3圖所示，影像輸入裝置2將輸入影像傳送至影像旋轉模組54，當外部旋轉控制器55根據使用者動作產生外部旋轉控制訊號至影像旋轉模組54時，影像旋轉模組54將會根據外部旋轉控制訊號旋轉輸入影像之角度，並將旋轉後的輸入影像傳送至自動縮放模組53。當自動縮放係數產生模組52根據第一解析度偵測模組50所偵測到之第一訊號與第二解析度偵測模組51所偵測到之第二訊號產生自動縮放係數至自動縮放模組53時，自動縮放模組53根據自動縮放係數調整該輸入影像之大小，以產生最後輸出至影像顯示裝置3的輸出影像。至於第3圖中之影像調整裝置5的各模組所具備之功能則請參照前面與第1圖、第2A圖~第2D圖相關之敘述，於此不另行贅述。As shown in FIG. 3, the image input device 2 transmits the input image to the image rotation module 54. When the external rotation controller 55 generates an external rotation control signal to the image rotation module 54 according to the user action, the image rotation module 54 The angle of the input image is rotated according to the external rotation control signal, and the rotated input image is transmitted to the automatic zoom module 53. The automatic scaling factor generation module 52 generates an automatic scaling factor to the automatic according to the first signal detected by the first resolution detecting module 50 and the second signal detected by the second resolution detecting module 51. When the module 53 is zoomed, the automatic zoom module 53 adjusts the size of the input image according to the automatic zoom factor to generate an output image that is finally output to the image display device 3. For the functions of the respective modules of the image adjusting device 5 in FIG. 3, please refer to the descriptions of FIGS. 1 and 2A to 2D, which will not be described again.
根據本發明之另一較佳具體實施例為一種影像調整方法。於此實施例中，影像調整方法係用以自影像輸入裝置接收輸入影像並產生輸出影像至影像顯示裝置。實際上，影像輸入裝置可以是DVD播放器、VCD播放器或其他類似的電子裝置；影像顯示裝置可以是液晶顯示器、電漿顯示器或其他類似的顯示裝置。請參照第4圖，第4圖係繪示此實施例之影像調整方法的流程圖。Another preferred embodiment of the present invention is an image adjustment method. In this embodiment, the image adjustment method is for receiving an input image from the image input device and generating an output image to the image display device. In fact, the image input device may be a DVD player, a VCD player or other similar electronic device; the image display device may be a liquid crystal display, a plasma display or the like. Please refer to FIG. 4, which is a flow chart showing the image adjustment method of this embodiment.
如第4圖所示，該影像調整方法執行步驟S10，偵測輸入影像之第一訊號；該影像調整方法執行步驟S12，偵測影像顯示裝置之第二訊號。As shown in FIG. 4, the image adjustment method performs step S10 to detect the first signal of the input image. The image adjustment method performs step S12 to detect the second signal of the image display device.
值得注意的是，上述步驟S10及步驟S12的執行順序並無特定之限制，該影像調整方法可同時執行上述步驟S10及步驟S12；先執行步驟S10後，再執行步驟S12；抑或先執行步驟S12後，再執行步驟S10。It should be noted that the sequence of the steps S10 and S12 is not limited. The image adjustment method may perform the above steps S10 and S12 simultaneously; after the step S10 is performed, the step S12 is performed; or the step S12 is performed first. After that, step S10 is performed again.
接下來，將就上述步驟S10及步驟S12各自包含的子步驟進行詳細的介紹。Next, the sub-steps included in the above steps S10 and S12 will be described in detail.
請參照第5圖，第5圖係繪示第4圖中之步驟S10的詳細流程圖。如第5圖所示，於步驟S10中，該影像調整方法可先執行子步驟S100，偵測輸入影像之第一訊號的水平同步訊號及垂直同步訊號。接著，該影像調整方法再執行子步驟S102，自顯示器計時表尋找出相對應水平同步訊號及垂直同步訊號之第一水平解析度及第一垂直解析度。Please refer to FIG. 5, which is a detailed flowchart of step S10 in FIG. 4. As shown in FIG. 5, in step S10, the image adjustment method may first perform sub-step S100 to detect a horizontal sync signal and a vertical sync signal of the first signal of the input image. Then, the image adjustment method performs sub-step S102 to find the first horizontal resolution and the first vertical resolution of the corresponding horizontal synchronization signal and the vertical synchronization signal from the display chronograph.
請參照第6圖，第6圖係繪示第4圖中之步驟S12的詳細流程圖。如第6圖所示，於步驟S12中，該影像調整方法可先執行子步驟S120，自影像顯示裝置接收對應於影像顯示裝置之第二訊號，第二訊號為延伸顯示識別資料。接著，該影像調整方法再執行子步驟S122，根據延伸顯示識別資料得到影像顯示裝置之第二水平解析度及第二垂直解析度。Please refer to FIG. 6, which is a detailed flowchart of step S12 in FIG. 4. As shown in FIG. 6, in step S12, the image adjustment method may first perform sub-step S120, and receive a second signal corresponding to the image display device from the image display device, and the second signal is an extended display identification data. Then, the image adjustment method performs sub-step S122 to obtain the second horizontal resolution and the second vertical resolution of the image display device according to the extended display identification data.
回到第4圖，於完成了步驟S10及步驟S12之後，該影像調整方法將會執行步驟S14，根據第一訊號及第二訊號產生自動縮放係數。Returning to FIG. 4, after step S10 and step S12 are completed, the image adjustment method will execute step S14 to generate an automatic scaling factor according to the first signal and the second signal.
請參照第7圖，第7圖係繪示第4圖中之步驟S14的詳細流程圖。如第7圖所示，於步驟S14中，該影像調整方法可先執行子步驟S140，根據第一訊號及第二訊號計算出縮放比。接著，該影像調整方法再執行子步驟S142，根據縮放比產生自動縮放係數。Please refer to FIG. 7. FIG. 7 is a detailed flowchart of step S14 in FIG. As shown in FIG. 7, in step S14, the image adjustment method may first perform sub-step S140 to calculate a zoom ratio according to the first signal and the second signal. Then, the image adjustment method performs sub-step S142 to generate an automatic scaling factor according to the zoom ratio.
再回到第4圖，於完成了步驟S14之後，該影像調整方法將會執行步驟S16，根據自動縮放係數調整輸入影像之大小。接著，該影像調整方法執行步驟S18，根據影像旋轉模組旋轉輸入影像之角度或根據外部旋轉控制訊號旋轉輸入影像之角度，以產生輸出影像。Returning to FIG. 4, after step S14 is completed, the image adjustment method will execute step S16 to adjust the size of the input image according to the automatic zoom factor. Then, the image adjustment method performs step S18, and rotates the angle of the input image according to the image rotation module or rotates the angle of the input image according to the external rotation control signal to generate an output image.
於另一較佳具體實施例中，請參照第8圖，第8圖係繪示此實施例之影像調整方法的流程圖。如第8圖所示，該影像調整方法執行步驟S20，偵測輸入影像之第一訊號；該影像調整方法執行步驟S22，偵測影像顯示裝置之第二訊號。需說明的是，上述步驟S20及步驟S22的執行順序並無特定之限制，該影像調整方法可同時執行上述步驟S20及步驟S22；先執行步驟S20後，再執行步驟S22；抑或先執行步驟S22後，再執行步驟S20。接著，該影像調整方法將會執行步驟S24，根據第一訊號及第二訊號產生自動縮放係數。然後，該影像調整方法執行步驟S26，根據影像旋轉模組旋轉輸入影像之角度或根據外部旋轉控制訊號旋轉輸入影像之角度。最後，該影像調整方法將會執行步驟S28，根據自動縮放係數調整輸入影像之大小，以產生輸出影像。In another preferred embodiment, please refer to FIG. 8. FIG. 8 is a flow chart showing an image adjustment method of this embodiment. As shown in FIG. 8, the image adjustment method performs step S20 to detect the first signal of the input image; and the image adjustment method performs step S22 to detect the second signal of the image display device. It should be noted that the sequence of the steps S20 and S22 is not limited. The image adjustment method may perform the above steps S20 and S22 simultaneously; after the step S20 is performed, the step S22 is performed; or the step S22 is performed first. After that, step S20 is performed again. Then, the image adjustment method will execute step S24 to generate an automatic scaling factor according to the first signal and the second signal. Then, the image adjustment method performs step S26, and rotates the angle of the input image according to the image rotation module or rotates the angle of the input image according to the external rotation control signal. Finally, the image adjustment method will perform step S28 to adjust the size of the input image according to the automatic zoom factor to generate an output image.
於實際應用中，該影像調整方法可自動根據影像輸入端及影像輸出端之解析度將畫面旋轉並縮放至符合顯示螢幕且等比例的大小，並以即時(real-time)的方式輸出畫面。舉例而言，如第9A圖所示，原來的輸入影像K0之長寬比為m:n。當顯示螢幕D旋轉90度時，顯示螢幕D所顯示之旋轉並縮放後的影像K1之長寬比可以是如第9B圖所示的n:(n2 /m)或如第9C圖所示的n:m。如第9B圖所示，當顯示螢幕D所顯示之旋轉並縮放後的影像K1之長寬比為n:(n2 /m)時，則顯示螢幕D所顯示的畫面中將會存在某些空白的部分G1及G2，此時即可依實際需求在該些空白的部分G1及G2輸出廣告、跑馬燈或另一旋轉畫面來源，但不以此為限。舉例而言，第1圖中之視訊訊號源4可提供廣告或跑馬燈的視訊訊號至影像顯示裝置3，使影像顯示裝置3所顯示的畫面中之空白的部分能夠播放廣告或跑馬燈的視訊訊號。In practical applications, the image adjustment method automatically rotates and scales the image to a scale corresponding to the display screen according to the resolution of the image input end and the image output end, and outputs the image in a real-time manner. For example, as shown in FIG. 9A, the original input image K0 has an aspect ratio of m:n. When the display screen D is rotated by 90 degrees, the aspect ratio of the image K1 displayed by the display of the rotation and zoomed by the screen D may be n: (n 2 /m) as shown in FIG. 9B or as shown in FIG. 9C. n:m. As shown in FIG. 9B, when the aspect ratio of the image K1 displayed by the rotation of the screen D and zoomed is n: (n 2 /m), some of the screens displayed on the display screen D will exist. The blank parts G1 and G2 can be used to output advertisements, marquees or another rotating picture source in the blank parts G1 and G2 according to actual needs, but not limited thereto. For example, the video signal source 4 in FIG. 1 can provide the video signal of the advertisement or the marquee to the image display device 3, so that the blank portion of the screen displayed by the image display device 3 can play the video of the advertisement or the marquee. Signal.
相較於先前技術，根據本發明之影像調整裝置及影像調整方法能夠動態且自動偵測影像輸入裝置所輸入之輸入影像的解析度以及影像顯示裝置所顯示之輸出影像的解析度，並據以產生自動縮放係數後，根據自動縮放係數自動調整輸出影像之大小，還可進一步搭配影像旋轉之功能，實現自動縮放並旋轉影像之目的。Compared with the prior art, the image adjusting device and the image adjusting method according to the present invention can dynamically and automatically detect the resolution of the input image input by the image input device and the resolution of the output image displayed by the image display device, and After the automatic scaling factor is generated, the size of the output image is automatically adjusted according to the automatic scaling factor, and the function of image rotation can be further combined to achieve the purpose of automatically scaling and rotating the image.
因此，即使每次的輸入影像及輸出影像之解析度可能會隨著影像輸入裝置及影像顯示裝置的不同而有所差異，但透過本發明之影像調整裝置及影像調整方法，使用者即不必額外進行任何設定，例如：使用影像縮放器(scaler)，即可輕易地達到影像旋轉後自動縮放或影像自動縮放後旋轉之功能，故可大幅簡化使用者調整影像時之操作流程並縮短其操作時間。Therefore, even if the resolution of the input image and the output image may vary from image input device to image display device, the image adjustment device and the image adjustment method of the present invention do not require an additional user. Make any settings, for example, use the image scaler to easily zoom in and out after the image is rotated or the image is automatically zoomed and rotated. This greatly simplifies the user's operation and shortens the operation time when adjusting the image. .
藉由以上較佳具體實施例之詳述，係希望能更加清楚描述本發明之特徵與精神，而並非以上述所揭露的較佳具體實施例來對本發明之範疇加以限制。相反地，其目的是希望能涵蓋各種改變及具相等性的安排於本發明所欲申請之專利範圍的範疇內。The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.
S10~S142、S20~S28．．．流程步驟S10~S142, S20~S28. . . Process step
1、5．．．影像調整裝置1, 5. . . Image adjustment device
2．．．影像輸入裝置2. . . Image input device
3．．．影像顯示裝置3. . . Image display device
14、54．．．影像旋轉模組14, 54. . . Image rotation module
10、50．．．第一解析度偵測模組10, 50. . . First resolution detection module
100．．．儲存單元100. . . Storage unit
11、51．．．第二解析度偵測模組11, 51. . . Second resolution detection module
102．．．偵測單元102. . . Detection unit
12、52．．．自動縮放係數產生模組12, 52. . . Automatic scaling factor generation module
13、53．．．自動縮放模組13,53. . . Automatic zoom module
D．．．顯示螢幕D. . . Display screen
15、55．．．外部旋轉控制器15, 55. . . External rotation controller
K0．．．原來的輸入影像K0. . . Original input image
120．．．縮放比計算單元120. . . Scaling ratio calculation unit
K1．．．旋轉並縮放後的影像K1. . . Rotated and scaled image
122．．．縮放係數產生單元122. . . Zoom factor generation unit
G1、G2．．．畫面中空白的部分G1, G2. . . Blank part of the picture
4．．．視訊訊號源4. . . Video source
m、n．．．比例m, n. . . proportion
第1圖係繪示根據本發明之一具體實施例之影像調整裝置的功能方塊圖。1 is a functional block diagram of an image adjustment apparatus according to an embodiment of the present invention.
第2A圖係繪示第1圖中之第一解析度偵測模組的詳細功能方塊圖。FIG. 2A is a detailed functional block diagram of the first resolution detection module in FIG. 1 .
第2B圖係繪示常見的視訊電子標準協會(VESA)顯示器計時表。Figure 2B shows a common Video Electronics Standards Association (VESA) display chronograph.
第2C圖係繪示第1圖中之第二解析度偵測模組的功能方塊圖。FIG. 2C is a functional block diagram of the second resolution detection module in FIG. 1 .
第2D圖係繪示第1圖中之自動縮放係數產生模組的詳細功能方塊圖。The 2D figure shows a detailed functional block diagram of the automatic scaling factor generation module in FIG. 1 .
第3圖係繪示根據本發明之另一具體實施例之影像調整裝置的功能方塊圖。Figure 3 is a functional block diagram of an image adjusting device according to another embodiment of the present invention.
第4圖係繪示根據本發明之另一具體實施例之影像調整方法的流程圖。4 is a flow chart showing an image adjustment method according to another embodiment of the present invention.
第5圖係繪示第4圖中之步驟S10的詳細流程圖。Fig. 5 is a detailed flow chart showing the step S10 in Fig. 4.
第6圖係繪示第4圖中之步驟S12的詳細流程圖。Fig. 6 is a detailed flow chart showing the step S12 in Fig. 4.
第7圖係繪示第4圖中之步驟S14的詳細流程圖。Fig. 7 is a detailed flow chart showing the step S14 in Fig. 4.
第8圖係繪示根據本發明之另一具體實施例之影像調整方法的流程圖。Figure 8 is a flow chart showing an image adjustment method according to another embodiment of the present invention.
第9A圖係繪示未經旋轉及縮放之原始影像的示意圖；第9B圖及第9C圖係繪示顯示螢幕顯示旋轉並縮放後之影像的示意圖。Figure 9A is a schematic diagram showing an original image that has not been rotated and scaled; Figures 9B and 9C are diagrams showing an image showing the rotation and scaling of the screen display.
1．．．影像調整裝置1. . . Image adjustment device
2．．．影像輸入裝置2. . . Image input device
3．．．影像顯示裝置3. . . Image display device
4．．．視訊訊號源4. . . Video source
10．．．第一解析度偵測模組10. . . First resolution detection module
11．．．第二解析度偵測模組11. . . Second resolution detection module
12．．．自動縮放係數產生模組12. . . Automatic scaling factor generation module
13．．．自動縮放模組13. . . Automatic zoom module
14．．．影像旋轉模組14. . . Image rotation module
15．．．外部旋轉控制器15. . . External rotation controller
Claims (14)
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| CN103679630A (en) * | 2012-09-03 | 2014-03-26 | 三星电子（中国）研发中心 | Video rotation method |
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| JP6446217B2 (en) * | 2014-09-24 | 2018-12-26 | 株式会社スクウェア・エニックス | Image display program, image display method, and image display system |
| CN105719616B (en) * | 2014-12-05 | 2018-08-17 | 南京视威电子科技股份有限公司 | A kind of vertical screen drive system and vertical screen driving method |
| TWI536363B (en) * | 2015-03-31 | 2016-06-01 | 建碁股份有限公司 | tiling-display system and method thereof |
| TW201834455A (en) * | 2016-12-05 | 2018-09-16 | 晨星半導體股份有限公司 | Stereoscopic image stream processing device and stereoscopic image stream processing method |
| TWI722221B (en) * | 2017-07-27 | 2021-03-21 | 優派國際股份有限公司 | Method for adjusting output images and multi-picture display system |
| CN107613342A (en) * | 2017-10-09 | 2018-01-19 | 深圳市沃特沃德股份有限公司 | Video self-adapting regulation method and device |
| TWI743394B (en) | 2018-09-13 | 2021-10-21 | 華碩電腦股份有限公司 | Projection method and projector |
| CN111078090A (en) * | 2019-11-29 | 2020-04-28 | 上海联影医疗科技有限公司 | Display method, device, equipment and storage medium |
| TWI715448B (en) * | 2020-02-24 | 2021-01-01 | 瑞昱半導體股份有限公司 | Method and electronic device for detecting resolution |
| WO2021195919A1 (en) * | 2020-03-31 | 2021-10-07 | 海信视像科技股份有限公司 | Display device, and power-on signal source display adaption method |
| CN111741353A (en) * | 2020-07-22 | 2020-10-02 | 深圳Tcl新技术有限公司 | Method for device cooperative work, terminal device and readable storage medium |
| TWI783588B (en) * | 2021-07-23 | 2022-11-11 | 瑞昱半導體股份有限公司 | Scaler integrated circuit applicable to performing multi-picture processing in display device |
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