CN102137232A - Image quality adjusting device, camera and image quality adjusting method - Google Patents
Image quality adjusting device, camera and image quality adjusting method Download PDFInfo
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Abstract
The invention provides an image quality adjusting device capable of performing overall adjustment and local adjustment while comparing, a camera and an image quality adjusting method. The image quality adjusting device comprises an overall adjusting part (12a) for performing overall adjustment related to a specific image quality, a local adjusting part (12b) for further performing adjustment related to a specific image quality on an image part differentiated on the basis of a specific image quality value after the overall adjusting part (12a) performs overall adjustment, and a display control part (12c) for juxtaposed display of menus (55,56) of overall adjustment indicated by the overall adjusting part (12a) and menus (55a,55b,56a,56b) of local adjustment indicated by the local adjusting part (12b).
Description
Technical field
The present invention relates to image quality adjusting device, camera and the image quality adjustment method that to adjust image quality such as the gray scale of image and focal positions.
Background technology
In the device that image is handled of camera etc., can't obtain image quality such as the gray scale of image and focal position such as image that the user was willing to sometimes.Usually, utilizing regulation zone with main subject or picture central authorities is benchmark and photograph in definite exposure value or focal position.At this moment, in the bigger subject of gray scale difference, in other words highlights divides and dark-part exists in the subject than big-difference on picture, facial sometimes dim, opposite sky whiting, image quality is willing to not as the user.
Therefore, following Electrofax has been proposed: can cut apart to picture, carry out gray correction at selected cut zone, so that can only carry out gray correction (opening the 2008-035457 communique) with reference to the spy of Japan at ad-hoc location, for example facial parts of picture.And,, also proposed to carry out gray correction so that the image display device of the whole smoothing of brightness histogram (opening the 2009-017306 communique) with reference to the spy of Japan as the method for gray correction.
As mentioned above, with subject and indivedual scenes correspondingly, the expectation of fine adjusting image quality on picture is very high.And, except brightness, fine adjust if can carry out the utmost point to the ambiguity of image or tone, then compare with the situation of utilizing common camera to carry out automatic photography, can access the image that meets user preferences.But, in above-mentioned prior art,, also can only carry out the adjustment of picture integral body or the adjustment of specific part respectively even fine adjust at the hope utmost point under the situation of image quality.
Summary of the invention
The present invention finishes in light of this situation, and its purpose is, integral body adjustment and a part of image quality adjusting device and image quality adjustment method of adjusting that can carry out image quality when comparing are provided.
The image quality adjusting device of the 1st aspect has: whole adjustment part, and it carries out the adjustment relevant with specific image quality at integral image; The part adjustment part, it further carries out and the relevant adjustment of above-mentioned specific image quality in the integral image of having been adjusted by above-mentioned whole adjustment part after the specific image quality, according to a part of image of the different differentiation of value difference of above-mentioned specific image quality; And display control unit, it is controlled, and makes to be used to import integral body adjustment at the adjustment indication of above-mentioned whole adjustment part with menu be used to import the part adjustment of indicating at the adjustment of above-mentioned part adjustment part and show with menu.
The camera of the 2nd aspect has: whole adjustment part, and it carries out the adjustment relevant with specific image quality at integral image; The part adjustment part, it further carries out and the relevant adjustment of above-mentioned specific image quality in the integral image of having been adjusted by above-mentioned whole adjustment part after the specific image quality, according to a part of image of the different differentiation of value difference of above-mentioned specific image quality; And display control unit, its be used in input at the integral body adjustment of the adjustment of above-mentioned whole adjustment part indication with menu be used to import the part adjustment of indicating and show with menu at the adjustment of above-mentioned part adjustment part, when photography, above-mentioned display control unit is controlled, and makes above-mentioned whole the adjustment show side by side with the displaying live view image with menu with menu and above-mentioned part adjustment.
The image quality adjustment method of the 3rd aspect has following steps: the integral body adjustment of adjustment indication that shows the integral body adjustment usefulness be used to import image quality is with menu and be used to import the part adjustment menu that the adjustment of the part adjustment usefulness of image quality is indicated, carry out the adjustment relevant at integral image with specific image quality, at in the integral image of having adjusted by above-mentioned integral body after the specific image quality,, further carry out and the relevant adjustment of above-mentioned specific image quality according to a part of image of the different differentiation of value difference of above-mentioned specific image quality.
According to the present invention, can when comparing, carry out the integral body adjustment and the part of image quality and adjust, so, can provide and carry out image quality adjusting device, camera and the image quality adjustment method that image quality is adjusted easily.
Description of drawings
Fig. 1 is the block diagram of structure of main circuit that the digital camera of an embodiment of the invention is shown.
Fig. 2 is the figure that the relation that integral body adjustment in the digital camera of an embodiment of the invention and part adjust is shown.
Fig. 3 is the figure that the initial picture of the lightness adjustment usefulness in the digital camera of an embodiment of the invention is shown.
Fig. 4 is the figure of picture that the lightness adjustment usefulness of the integral body in the digital camera of an embodiment of the invention is shown.
Fig. 5 is the figure of picture that the lightness adjustment usefulness of integral body in the digital camera of an embodiment of the invention and part is shown.
Fig. 6 is the figure of picture that the lightness adjustment usefulness of integral body in the digital camera of an embodiment of the invention and part is shown.
Fig. 7 is the figure that the gamma curve of the gradation conversion in the digital camera of an embodiment of the invention is shown.
Fig. 8 is the figure that the picture of the focus adjustment usefulness in the digital camera of an embodiment of the invention is shown.
Fig. 9 is the figure of picture that the focus adjustment usefulness of integral body in the digital camera of an embodiment of the invention and part is shown.
Figure 10 is the figure that adjusts based on the focus of contrast in the digital camera of explanation an embodiment of the invention.
Figure 11 is the flow chart of action of photograph mode that the digital camera of an embodiment of the invention is shown.
Figure 12 is the flow chart that the action that the project menu of the digital camera of an embodiment of the invention show to handle is shown.
Figure 13 is the flow chart that the action that the change image of the digital camera of an embodiment of the invention generate to handle is shown.
Embodiment
Below, with reference to the accompanying drawings, use has been used digital camera of the present invention preferred implementation has been described.The digital camera of a preferred execution mode of the present invention has image pickup part, by this image pickup part shot object image is converted to view data, and according to the view data after this conversion, displaying live view shows shot object image in the display part that is disposed at the main body back side.The cameraman observes displaying live view and shows, determines composition and shutter chance thus.When releasing operation, recording image data in recording medium (image storage part).After selecting reproduction mode, can in display part, reproduce and be presented at the view data that writes down in the recording medium.
Fig. 1 is the block diagram of structure that the digital camera of an embodiment of the invention is shown.Control part (CPU:Central Processing Unit) 11 moves according to the control program that is stored in program and the data store 13, carries out the integral body control of digital camera.In control part 11, be provided with and adjust control part 12, in this adjustment control part 12, be provided with whole adjustment part 12a, part adjustment part 12b, display control unit 12c.Adjustment control part 12, whole adjustment part 12a, part adjustment part 12b, display control unit 12c in the control part 11 all are parts of the processing carried out by control program, so the function portion that is comprised as control part 11 describes.
And part adjustment part 12b has part 1 adjustment part 12b1 and part 2 adjustment part 12b2.In part 1 adjustment part and part 2 adjustment part 12b1, the 12b2 integral image after at the specific image quality of having adjusted lightness or focus etc. by whole adjustment part 12a, according to a part of image of the different differentiation of value difference of specific image quality, further carry out the adjustment relevant with specific image quality.
For example, as specific image quality, carry out under the situation of adjustment of lightness, as shown in Figure 7, this adjustment is carried out in the change of transformation curve that can be when with respect to input the γ conversion is carried out in output.In integral body is adjusted, divide P1 to change comprising at the curve L (central value shown in the single-point line) of interior integral body to the γ conversion from dark-part P2 to highlights.Relative therewith, in part is adjusted, only divide the curve (L1～L4 or L ' 1～L ' 4) of arbitrary input change γ conversion of the corresponding input of P1 at the input corresponding or with highlights with dark-part P2, carry out the adjustment of image quality.
Except described control part 11, bus 30 also with image pickup part 20, SDRAM 21, image processing part 22, show that handling part 26, compressed and decompressed 23 and record-playback portion 24 are connected.The phtographic lens driving mechanism of the driving that image pickup part 20 comprises the phtographic lens that is used to form shot object image, carry out this phtographic lens, be used for that shot object image is converted to the imaging apparatus of view data and insert the aperture of light path of these treatment circuits and phtographic lens and shutter etc.The view data of the digital form that is generated by image pickup part 20 is output to bus 30.
And, in image pickup part 20, be provided with AF control part 20a.AF control part 20a extracts the radio-frequency component of view data, so that this radio-frequency component becomes the mode of peak value, the phtographic lens driving mechanism is driven, and regulates the focal position of phtographic lens.
SDRAM (Dynamic Random Access Memory) the 21st, the volatibility temporary storage of can electricity rewriting is used for the view data of interim storage from image pickup part 20 outputs.Image processing part 22 carries out having gain adjustment part 22a, the 22b of gradation conversion portion, the 22c of low-pass filtering portion and contrast adjustment part 22d from the image processing of the view data of image pickup part 20 outputs.
The characteristic of the gamma curve the when 22b of gradation conversion portion change is changed carry out γ from the view data of image pickup part 20 outputs.The 22b of this gradation conversion portion is according to the control of described part 1 adjustment part 12b1, change is to dividing the characteristic that the corresponding input of P1 carries out the gamma curve in γ when conversion (to be L1～L4) in example shown in Figure 7 with highlights, and, according to the control of part 2 adjustment part 12b2, the characteristic of the gamma curve when change is carried out the γ conversion to the input corresponding with dark-part P2 (in example shown in Figure 7, being L ' 1～L ' 4).
The 22c of low-pass filtering portion carries out pixel addition each other in adjacent pixels, and carries out low-pass filtering treatment, reduces the resolution (acutance, resolution sense, focusing sense) of image.And the 22c of low-pass filtering portion can distinguish and regulates high part of resolution and the low part of resolution individually.Promptly, can distinguish individually control according to described part 1 adjustment part 12b1, carry out low-pass filtering treatment at the input corresponding, and according to the control of part 2 adjustment part 12b2, carry out low-pass filtering treatment at the input corresponding with the lower part of resolution with the higher part of resolution.
Except described image processing, image processing part 22 also carries out white balance, color correction, displaying live view and shows various image processing with image generation, dynamic image generation etc.As color correction, also carry out chroma adjustment and tone adjustment.And compressed and decompressed 23 is following circuit: by the compress mode of JPEG or TIFF etc., compress be stored in the still image among the SDRAM 21 or the view data of dynamic image temporarily, and decompress so that show etc.In addition, image compression is not limited to JPEG or TIFF, also can use other compress modes.
Show that handling part 26 carries out displaying live view and shows when photography, when reproducing in display part 27 the display reproduction image.And,, carry out the whole synthetic processing that synthesizes the displaying live view image with menu, part adjustment with the image of menu etc. of adjusting described later according to indication from display control unit 12c.Display part 27 is connected with showing handling part 26, the display of the LCD monitor that disposes or organic EL etc. such as has at the back side of the main body of camera 10.By showing the control of handling part 26, in the screen displayed specified image of display part 27.
Record-playback portion 24 is stored in compressed and decompressed 23 the view data of compression in image storage part 25, and, read out in the view data of the photographs of storage in the image storage part 25.In compressed and decompressed 23 this view data of reading is decompressed, the view data after decompressing according to this is reproduced display image in display part 27.Image storage part 25 is connected with record-playback portion 24, is to be built in the record image data medium that maybe can be installed on the digital camera main body in the digital camera main body.
Then, use Fig. 2 that integral body adjustment and the part adjustment of adjusting control part 12 described.By the image quality of adjusting control part 12 adjustment lightness, focus etc. are arranged, the adjustment of these image quality is as described below.At first, the integral body adjustment of lightness has based on the gain adjustment of gain adjustment part 22a with based on the adjustment of the aperture or the shutter of image pickup part 20.
Be used to carry out gain adjustment that the integral body of lightness adjusts adjustment, become whole bright image, become whole dark image by reducing the ISO photosensitivity by improving the ISO photosensitivity corresponding to the ISO photosensitivity.And, become whole bright image by opening aperture, become whole dark image by stop down.And then, become whole bright image by the shutter speed that slows down, become whole dark image by accelerating shutter speed.
And the part adjustment of lightness is for example undertaken by the 22b of gradation conversion portion.As mentioned above, the 22b of gradation conversion portion can divide P1 and dark-part P2 to change the curve of γ conversion respectively individually at highlights.Therefore, can carry out the part adjustment, so that divide corresponding input further to brighten or deepening with highlights, the further deepening of the input corresponding or brighten with dark-part.About the part adjustment of lightness, except the 22b of gradation conversion portion, can also adjust by gain adjustment part 22a.That is, only highlights is divided or the gain of dark-part is adjusted into higher or lower.
Then, carry out integral body adjustment by AF control part 20a at focus.And AF control part 20a can come the focal position of manual adjustments phtographic lens according to user's indication by the phtographic lens driving mechanism.Therefore, can regulate the focal position of integral image automatically by AF control part 20a, and then, can also make the focal position to front side or rear side skew by manual operation.
And, undertaken by contrast adjustment part 22d and the 22c of low-pass filtering portion at the part adjustment of focus.The part 1 adjustment is focusing and can realize the adjustment of clear view, and in the present embodiment, 22d regulates by the contrast adjustment part.The part 2 adjustment is the adjustment of not focusing, in other words defocusing, and in the present embodiment, regulates by 22c of low-pass filtering portion and contrast adjustment part 22d.
Then, use Fig. 3～Fig. 7 that the integral body adjustment and the part adjustment of the lightness of present embodiment are described.Fig. 3 (a) is the starting image (acquiescence picture) that the displaying live view in the display part 27 shows.Show about displaying live view,, in order to observe shot object image, and in display part 27, show as dynamic image according to view data from image pickup part 20 outputs.The cameraman observes this displaying live view and shows, decision composition and shutter are regularly.
In the starting image shown in Fig. 3 (a), when the cameraman press as one of push-botton operation portion 14 in real time to lead key the time, shown in Fig. 3 (b), show real-time guide display.In real-time guide display, the right side at the picture of display part 27 shows the project menu 50 that real-time guide is used with the displaying live view doubling of the image.As project menu 50, show the 1st icon 51a, the 2nd icon 51b, these 4 icons of the 3rd icon 51c, the 4th icon 51d.
The 1st icon 51a is a chroma adjustment icon, and chroma is adjusted, so that the color of picture becomes distinct, perhaps makes color become soft on the contrary.The 2nd icon 51b is a focus condition adjustment icon, and focusing is adjusted, so that thoroughly blur nearby or at a distance, perhaps on the contrary from focusing to the distant place nearby.The 3rd icon 51c is a light and shade adjustment icon, and the light and shade of picture is adjusted, so that picture brightens, perhaps makes the picture deepening on the contrary.The 4th icon 51d is a tone adjustment icon, makes picture have redness and is adjusted into the tone of warm atmosphere, perhaps makes picture have blueness on the contrary and is adjusted into the tone of cold atmosphere.
About in each the icon 51a～51d that in project menu 50, shows, the icon of current appointment, can move it by the cross button of action button operating portion 14, select by the OK button.Around the icon of current appointment, show the cursor 52 that is used to illustrate moving direction.And the upside or the downside display items display guide 53 of the picture of display part 27, the project of the icon of 53 pairs of appointments of this project guide describes.
In the example shown in Fig. 3 (b), specified the 1st icon 51a that is used to adjust chroma, the cursor 52 that shows the moving direction that is used to illustrate the cross button at the downside of the 1st icon 51a, and, show at the picture upside " make color become distinct/make color become soft ", as the project guide 53 of the 1st icon 51a.The user watches this project guide 53, thus, can know the adjustment content of the 1st icon.
When pressing the following directionkeys of cross button under the state shown in Fig. 3 (b), cursor 52 moves according to the order of the 2nd icon 51b → the 3rd icon 51c → the 4th icon 51d.In the 2nd icon 51b and the 3rd icon 51c, cursor 52 can move up and down, so, at the display highlighting up and down 52 of each icon.In the example shown in Fig. 3 (c), specified the 3rd icon 51c, so, show " brightening/deepening " as project guide 53, illustrate and can carry out the situation that light and shade is adjusted.
In the appointment shown in Fig. 3 (c) under the state of the 3rd icon 51c, when selecting the 3rd icon 51c, shown in Fig. 4 (a), show the picture that the light and shade (brightness) carry out integral image is adjusted when the OK button in user's action button operating portion 14.Adjust in the picture in the light and shade (brightness) of this image, the right side at the picture of display part 27 shows whole slide sign 55 and slide block 56, as the integral body adjustment menu of real-time guide.Show the 3rd icon 51c in the inside of slide block 56, so that selected adjustment content is shown.
In addition, shown in the enlarged drawing of Fig. 4 (d), around slide block 56, show the arrow of the direction that expression slide block 56 can move, as cursor 52a～52c.That is, display highlighting 52a under the situation that slide block 56 can move up, display highlighting 52b under the situation that slide block 56 can be moved to the left, display highlighting 52c under the situation that slide block 56 can move down.The user watches cursor, can judge the direction that can move, thereby the cross button is operated.
When pressing the last directionkeys in the cross button under the state shown in Fig. 4 (a), slide block 56 moves up along whole slide sign 55, and shown in Fig. 4 (b), the lightness of the picture integral body of display part 27 increases.And when pressing the following directionkeys in the cross button, slide block 56 moves down along whole slide sign 55, and shown in Fig. 4 (c), the lightness of the picture integral body of display part 27 reduces.In addition, in example shown in Figure 4, can proofread and correct with the correcting value of maximum 2EV respectively, so that image brightens or makes the image deepening.
In picture shown in Figure 4, the light and shade of integral image is adjusted, still, under the situation of only wishing high brightness or low-light level are partly adjusted the user, the user presses the button the LeftArrow of the cross button in the operating portion 14.By this operation, shown in Fig. 5 (a), use on the basis of menu in the integral body adjustment of guide in real time, also display part adjustment menu.
That is,,, also show the slide block 56a that moves up and down along this part slide sign 55a with whole slide sign 55 display part slide sign 55a abreast in the left side of whole slide sign 55.In slide block 56a, show the 3rd icon 51c selected, and, around slide block 56a, show the cursor 52 of the direction that expression can be moved by the cross button at 4 places.Constitute part 1 adjustment menu by part slide sign 55a and slide block 56a.Can carry out the part adjustment of high brightness (bright) part with menu by this part 1 adjustment.
And, on whole slide sign 55, show the indicating device 57 of the current adjustment position of the brightness be used to illustrate integral image.That is, making slide block 56 after high brightness side or low-light level side shifting, carry out the part adjustment sometimes, still, indicating device 57 illustrates the correcting value of the integral image of this moment.
Above the picture of display part 27, when slide block 56a is moved up, show the project guide 53a of expression " it is brighter that highlights is divided ".And, below the picture of display part 27, when slide block 56a is moved down, show the project guide 53b of expression " making highlights divide deepening ".
The LeftArrow of operation cross button under the state of Fig. 4 is showing the part 1 adjustment with under the initial conditions of menu, and shown in Fig. 5 (a), slide block 56a is positioned at the center of part slide sign 55a.Under this state, operation is directionkeys and when slide block 56a is moved down, shown in Fig. 5 (b), carry out the image adjustment, so that the highlights in the image divides deepening down.Its result adjusts, so that cloud 61 or the sun 62 this highlights divide deepening.
And, being positioned under the state of center at the slide block 56a shown in Fig. 5 (a), directionkeys in the operation and when slide block 56a is moved up, shown in Fig. 5 (c), carry out the image adjustment further brightens so that the highlights in the image divides.Its result adjusts, and further brightens so that cloud 61 or the sun 62 this highlights divide.
And, shown in Fig. 4 (b), comparing with correct exposure under the state that has increased lightness, when operating the LeftArrow of cross button, become the menu screen of the part adjustment usefulness shown in Fig. 6 (a).Under the state of Fig. 4 (b), integral body is adjusted into high brightness, so integral body brightens.Under this state, when slide block 56a is moved up, become the brighter image shown in Fig. 6 (b).Become the almost image of whiting of cloud 61 or the sun 62 this highlights branches.
In Fig. 5 (a), in the left side of part slide sign 55a, with part slide sign 55a display part slide sign 55b abreast.When part 1 is adjusted the LeftArrow of a cross button of operation in the menu screen, when perhaps in integral body adjustment menu screen, operating twice LeftArrow, shown in Fig. 6 (c), become part 2 and adjust menu screen.
Adjust in the menu screen in part 2, the slide block 56b that demonstration is moved along part slide sign 55b, in this slide block 56b, show the 3rd icon 51c that has selected, and, around slide block 56b, up and down and the right side add up to 3 places to show to represent the cursor 52 of the direction that can move by the cross button.Constitute part 2 adjustment menu by part slide sign 55b and slide block 56b.Can carry out the part adjustment of low-light level part with menu by this part 2 adjustment.
In addition, hi-lite is illustrated in the part that brightness in the image is higher than the regulation brightness value, and low-light level partly is illustrated in the part that brightness in the image is lower than the regulation brightness value.In the regulation brightness value, for example set the mean flow rate of integral image.And, can with carried out adjusted brightness by the integral body adjustment and changed the regulation brightness value linkedly.That is, can adjust in integral body and be adjusted in the menu screen in the bright image, set setting than the highland.
Example shown in Fig. 6 (c) is a situation of pressing 2 LeftArrows under the state of Fig. 4 (c).That is, be following situation: it is dark to be adjusted into integral body in Fig. 4 (c), and then, be adjusted into the darker or opposite dark-part of dark-part by the part 2 adjustment with menu and brighten.In Fig. 6 (c), slide block 56b is positioned at the center of part slide sign 55b, during to key, shown in Fig. 6 (d), carries out the part adjustment, so that dark-part is darker below operation under this state.
Like this, in the present embodiment, under the situation of carrying out the part adjustment at lightness, divide the curve characteristic of P1 and dark-part P2 to adjust separately at the highlights in the gamma curve.That is single-point line L, shown in Figure 7 is the central value of gamma curve.With this center curve is the center, under the situation of highlights being divided P1 adjust, the curve of P1 part is adjusted.Highlights is divided under the brighter situation, and making the curvilinear motion of P1 part is this specific character of L3～L4.And, highlights is divided under the situation of deepening, making the curvilinear motion of P1 part is this specific character of L1～L2.Equally, under the situation that dark-part P2 is adjusted, the curve of P2 part is adjusted.Under the situation that dark-part is brightened, making the curvilinear motion of P2 part is L ' 1～L ' 2 these specific characters.And, make under the darker situation of dark-part, making the curvilinear motion of P2 part is L ' 3～L ' 4 these specific characters.
Then, use Fig. 8～Figure 10 that the situation of adjusting focus is described.In the present embodiment, the integral body adjustment of focus is undertaken by the phtographic lens driving mechanism of image pickup part 20, and the part adjustment of focus is undertaken by 22c of low-pass filtering portion and contrast adjustment part 22d.
At first, use Figure 10 that focus (differentiating sense, the focusing sense) adjustment of the part of being undertaken by the contrast adjustment is described.Figure 10 (a) illustrates an example of the plain position of transverse axis capture, the original signal curve the when longitudinal axis is got intensity level.When this original signal curve degree of comparing being emphasized to handle, shown in Figure 10 (b), emphasized the edge of image part, can access the image of just in time focusing (it is high to differentiate sense) by contrast adjustment part 22d.On the other hand, when reducing processing, shown in Figure 10 (c), can access the edge of image partial relaxation by contrast adjustment part 22d degree of comparing, and the fuzzy image of focus.Analyze by frequency content, carry out focusing part and non-focusing judgement partly on the picture image.For example, the region decision that radio-frequency component is many is the focusing part, and the region decision that radio-frequency component is few is non-burnt part.
And, implement low-pass filtering treatment by the 22c of low-pass filtering portion, reduce radio-frequency component thus, so, can access and defocus identical effect.And the 22c of low-pass filtering portion can be only carries out low-pass filtering treatment at the view data of only having extracted radio-frequency component or the view data of only having extracted low-frequency component.Perhaps, the 22c of low-pass filtering portion also can implement low-pass filtering treatment to radio-frequency component many zone or the few zone of radio-frequency component.Like this, can implement the following processing: only at the part of relative focusing or only defocus at the part of non-relatively focusing.
Then, use Fig. 8 and Fig. 9 explanation to carry out the guide menu demonstration that above-mentioned this focus is adjusted.Fig. 8 (a) illustrates following state: in the real-time guide display shown in Fig. 3 (b), use cursor 52 to specify the 2nd icon 51b.Under this state, press the OK button and when selecting the 2nd icon 51b, shown in Fig. 8 (b), show whole slide sign 55 and the slide block 56 that moves up and down along this integral body slide sign 55.Showing that whole slide sign 55 and slide block 56 are adjusted as a whole uses menu.
And, on the picture top of display part 27, slide block 56 is moved up, thus, display list is shown in front focus, promptly with respect to the project guide 53a of the state of the side nearby of AF focal position focusing.And, in the picture bottom of display part 27, slide block 56 is moved down, thus, display list is shown in back focus, promptly with respect to the project guide 53b of the state of the distally of AF focal position focusing.
In real-time guide display, under the state of having selected the 2nd icon 51b, shown in Fig. 9 (a), slide block 56 is positioned at the substantial middle of slide sign 55.When slide block 56 being moved up and down by operation cross button, according to amount of movement, the phtographic lens driving mechanism travelling shot camera lens of image pickup part 20, so, as a whole, manual moving focal point position.
And, under the situation of wishing the fuzzy part of part or focus of focusing is further adjusted the user, press the LeftArrow of cross button, carry out the part shown in Fig. 9 (b)～(e) and adjust the menu demonstration.Adjust during menu shows in part, same with the situation that focus is adjusted, at the left side of whole slide sign 55 and its display part slide sign 55a, 55b concurrently.Display part slide sign 55a and slide block 56a are as part 1 adjustment menu, and display part slide sign 55b and slide block 56b are as part 2 adjustment menu.
Under the situation of only operating a LeftArrow, show the slide block 56a that moves up and down along part slide sign 55a.Under this state,, when slide block 56a is moved up,, show the project guide 53a of expression " it is clearer to focus " by this operation on the picture top of display part 27.And,, when slide block 56a is moved down,, show the project guide 53b of expression " it is fuzzyyer to focus " by this operation in the picture bottom.The user operates slide block 56a along the indication of this project guide 53a, 53b and gets final product.
That is, when slide block 56a is moved up, shown in Fig. 9 (b), implement image processing, so that the further focusing of the focusing of shot object image part.On the other hand, when slide block 56a is moved down, shown in Fig. 9 (c), implement image processing, so that the focus of the focusing of subject part is fuzzy.By this part 1 adjustment menu, can differentiate the part adjustment of sense (focusing sense) to the focusing part.
And, when operating twice LeftArrow, show the slide block 56b that moves up and down along part slide sign 55b.Under this state,, when slide block 56b is moved up,, show the project guide 53a of expression " non-focusing is clearer " by this operation on the picture top of display part 27.And,, when slide block 56b is moved down,, show the project guide 53b of expression " non-focusing is fuzzyyer " by this operation in the picture bottom.The user operates slide block 56b along the indication of this project guide 53a, 53b and gets final product.
That is, when slide block 56b is moved up, shown in Fig. 9 (d), implement image processing, so that the non-focusing part focusing of shot object image.On the other hand, when slide block 56b is moved down, shown in Fig. 9 (e), implement image processing, so that the focus of the non-focusing part of subject is fuzzyyer.By this part 2 adjustment menu, can differentiate the part adjustment of sense (focusing sense) to non-focusing part.
In addition, focusing part presentation video medium-high frequency composition is higher than the part of setting, and non-focusing part presentation video medium-high frequency composition is lower than the part of setting.As setting, for example can use predefined default value, also can use the mean value of image at every turn.And, also can change setting linkedly with adjusted value based on the integral body adjustment.That is, adjust in the menu screen,, can set setting than the lowland focus being adjusted under the situation of the position that is offset forwards, backwards than original position in integral body.
In addition, as mentioned above, the image processing that defocuss is undertaken by 22c of low-pass filtering portion and contrast adjustment part 22d.And as mentioned above, the image processing of focusing is undertaken by contrast adjustment part 22d.
Then, the flow chart that uses Figure 11～shown in Figure 13 describes the flow process of the photograph mode that is used to carry out present embodiment.According to program stored in program and data store 13, carry out this flow process by control part 11.After entering photograph mode, at first, judge whether show real-time guide (S11).Action button operating portion 14 in real time when lead key, the real-time guide of the screen displayed of display part 27, so, in this step, judge and whether operated in real time to lead key.
, carry out common displaying live view and show (S13) for not carry out under the situation of real-time guide display in the result of determination of step S11.Here, handle, by showing that handling part 26 carries out displaying live view and shows in display part 27 by 22 pairs of view data of image processing part from image pickup part 20 outputs.The cameraman decides composition by observing the displaying live view demonstration, can carry out shutter and discharge.
Under the situation of result of determination of step S11, then, carry out the processing (S12) that real-time guide display is used for the real-time guide of demonstration.Here, use menu with whole adjustment of the overlapping demonstration of displaying live view with menu or part adjustment, and, carry out moving uniform images processing etc. with cursor.Using Figure 12 to be described in detail this real-time guide display in the back handles.
In step S12, carry out after real-time guide display handles, perhaps in step S13, carry out then, judging and whether having carried out releasing operation (S14) after displaying live view shows.After the user determines that shutter release is carried out in composition and decision, press the button the release-push of operating portion 14, so, here, judge and whether supress release-push.
Result of determination at step S14 is to have carried out under the situation of releasing operation, then, carries out photograph processing (S15).In photograph processing, carry out image processing by 22 pairs of image processing parts from the view data of image pickup part 20 outputs, carry out image compression by compressed and decompressed 23 after, it is stored in the image storage part 25.
After in step S15, carrying out photograph processing, perhaps in the result of determination of step S14 for not carry out under the situation of releasing operation, then, judge and whether carried out power supply opening operation (S16).In this step, judge according to the mode of operation of the power knob of push-botton operation portion 14.For not carry out under the situation of power supply opening operation, return step S11 in result of determination, carry out described action.On the other hand, be to have carried out carrying out the power supply disconnection process under the situation of power supply opening operation in result of determination, finish the action of photograph mode.
Then, use flow chart shown in Figure 12 to come the real-time guide display among the description of step S12 to handle.After entering this flow process, at first, judge and whether start (S21).In guide display is handled in real time, when entering for the first time, the default image of the real-time guide shown in the displayed map 3 (b), so, in this step, judge whether enter for the first time.
Under the situation of result of determination of step S21, generate and show the project menu image (S22) of acquiescence for starting (entering for the first time).The project menu image is stored in program and the data store 13, so, read this view data, shown in Fig. 3 (b), overlapping display items display menu image in displaying live view shows.
Carry out the generation demonstration of project menu image in step S22 after, perhaps the result of determination at step S21 is under the situation of non-starting, then, judges whether be in the demonstration of project menu (S23).Here, judgement is the project menu shown in the displayed map 3 (b), or the integral body adjustment shown in displayed map 4 (a) or Fig. 5 (a) is adjusted with menu (using menu hereinafter referred to as adjusting) with menu or part.
If the result of determination of step S23 is to be in the demonstration of project menu, then follow, judge and in this project menu, whether carried out the indication that cursor moves (S24).As mentioned above, the up and down arrow keys of the cross button by action button operating portion 14, the appointment that can change icon 51a～51d.Therefore, in this step, judge and whether operated up and down arrow keys.
In the result of determination of step S24 is to have carried out under the situation that cursor moves, then, and the cursor of mobile project menu (S25).Here,, change the appointment of icon 51a～51d successively, display highlighting 52 in specified icon 51a～51d according to the mode of operation of up and down arrow keys.
Carrying out in step S25 after cursor moves, is not have then, to judge and whether carried out adjusting the switching indication (S26) that shows with menu under the situation that instructs cursor moves in the result of determination of step S24 perhaps.When in the project menu shows, operating LeftArrow, carry out the demonstration of the adjustment shown in Fig. 4 (a) or Fig. 5 (a) with menu, so, in this step, judge the mode of operation of LeftArrow.
Result of determination at step S26 is to exist under the situation of adjusting the switching indication that shows with menu, shows the adjustment corresponding with cursor project menu (S27).For example, shown in Fig. 4 (a), when operating LeftArrow under the state of having specified the 3rd icon 51c, show real-time guide, integral body shown in this real-time guide display Fig. 5 (a) and part adjustment are used menu.
For not being under the situation about being in the demonstration of project menu, then, adjust demonstration (S31) in the result of determination of step S23 with menu.In this real-time guide display, for example shown in Fig. 5 (a), show the whole whole slide sign 55 of usefulness and part slide sign 55a, the 55b that part is adjusted usefulness of adjusting.And,, show slide block 56,56a, 56b according to selected slide sign 55,55a, 55b.
Adjusting with in the demonstration of menu, then, judging whether to exist and return the switching indication (S32) that the project menu shows.Here, during the operation return push-button, return the project menu and show, thus the mode of operation of judgement return push-button., carry out the project menu and show (S33) for existing under the situation of indicating in this result of determination at the switching of project menu demonstration.Here, carrying out the project menu shown in described Fig. 3 (b) shows.
On the other hand, under the situation that the result of determination of step S32 is indicated for the switching that does not show at the project menu, then, judge the indication (S34) that in adjusting, whether exists cursor to move with menu.As mentioned above, the operation of the directionkeys up and down by the cross button is carried out cursor and is moved, so, here, judge and whether operated the cross button.
Result of determination at step S34 is to have carried out cursor to move under the situation of indication, then, changes image and generates processing (S35).Here, carry out image processing according to selected real-time guide.For example, at the 3rd icon 51c that selected the image light and shade is adjusted and moved under the situation of slide block 56,56a, 56b, the image light and shade is adjusted according to the amount of movement of slide block.Use Figure 13 to be described in detail this change image in the back and generate processing.
After carrying out the processing of step S27, S33, S35, perhaps the result of determination at step S26 is not adjust under the situation of the switching indication that shows with menu, perhaps the result of determination at step S34 is not have cursor to move under the situation of indication, returns original flow process under the state of adjusting with the menu demonstration.
Then, use flow chart shown in Figure 13 to come the change image among the description of step S35 to generate processing.After entering this flow process, at first, judge the project in guide in real time, selected whether be " lightness " (S41).When the project menu shown in Fig. 3 (b) shows, under the situation of the 3rd icon 51c that has selected to be used for the image light and shade is adjusted, the whole slide sign 55 of the lightness adjustment usefulness shown in displayed map 4 (a), Fig. 5 (a), part slide sign 55a, 55b.Therefore, in this step, judge and whether selected the 3rd icon 51c.
For to have selected under the situation of " lightness ", then, judge whether slide block moves (S42) in whole slide sign in the result of determination of step S41.Adjusted the user under the situation of light and shade of integral image,, the slide block 56 that moves up and down along whole slide sign 55 has been moved by the operation up and down arrow keys.In this step, judge moving of slide block 56.
In the result of determination of step S42 under the situation that slide block moves in whole slide sign, according to the adjustment (S43) that gains of the position of slide block.Here, the ISO photosensitivity is adjusted, perhaps the f-number or the shutter speed value of image pickup part 20 are adjusted, thus, carry out the adjustment of the lightness of integral image by the gain adjustment part 22a in the image processing part 22.
Result of determination at step S42 is not carry out in whole slide sign under the situation about moving of slide block, then, judges move (S44) that whether has carried out slide block in the part slide sign.Under the situation that the user only adjusts the light and shade of image middle light branch or dark-part, the slide block 56a, the 56b that move up and down along part slide sign 55a, 55b are moved.In this step, judge moving of slide block 56a, 56b.
The result of determination of step S44 for the situation that in the part slide sign, has slide block and move under, then, carry out gray scale adjustment (S45) according to the position of slide block.As use Fig. 5 and Fig. 6 described, under the situation of having operated slide block 56a, carry out the light and shade adjustment that the image middle light divides, under the situation of having operated slide block 56b, carry out the light and shade adjustment of dark-part in the image.
Is not under the situation of " lightness " in the result of determination of step S41 for the project of selecting in guide in real time, then, judge the project in guide in real time, selected whether be " focus " (S51).When the project menu shown in Fig. 3 (b) shows, under the situation of the 2nd icon 51b that has selected to be used for the figure image focus is adjusted, the whole slide sign 55 of the focus adjustment usefulness shown in displayed map 8 (a), Fig. 9 (a), part slide sign 55a, 55b.Therefore, in this step, judge and whether selected the 2nd icon 51b.
Result of determination at step S51 is under the situation of " focus " for the project of selecting in real-time guide, then, judges whether slide block moves (S52) in whole slide sign.Adjusted the user under the situation of focus of integral image,, the slide block 56 that moves up and down along whole slide sign 55 has been moved by the operation up and down arrow keys.In this step, judge moving of slide block 56.
Result of determination at step S52 is under the situation that slide block moves in whole slide sign, carries out focus adjustment (S53) according to the position of slide block.Here, by the phtographic lens driving mechanism in the image pickup part 20, according to the position of slide block 56, focal position or back focus position drive phtographic lens forward, carry out the focus adjustment of integral image.
Result of determination at step S52 is not carry out in whole slide sign under the situation about moving of slide block, then, judges move (S54) that whether has carried out slide block in the part slide sign.The user only to image under the focus condition of focusing part or the non-focusing part situation about adjusting, the slide block 56a, the 56b that move up and down along part slide sign 55a, 55b are moved.In this step, judge moving of slide block 56a, 56b.
The result of determination of step S54 for the situation that in the part slide sign, has slide block and move under, then, carry out low pass/contrast adjustment (S55) according to the position of slide block.As use Fig. 9 described, under the situation of having operated slide block 56a, carry out in the image adjustment of the focus condition of focusing part, under the situation of having operated slide block 56b, carry out the adjustment of the focus condition of non-focusing part in the image.
In the result of determination of step S51 is that the project of real-time guide is not under the situation of " focus ", carries out other processing (S61).In the present embodiment, as the project menu of real-time guide, except above-mentioned " lightness " and " focus ", shown in Fig. 3 (b), also be provided with the 1st icon 51a that the image chroma is adjusted and the 4th icon 51d that picture tone is adjusted.In this step S61, selected the adjustment under the situation of these icons.The adjustment here is identical with the situation of " lightness " and " focus ", carries out integral body adjustment, and, can independently adjust at high chroma or low chroma part, and, can independently adjust at redness or blue portion.
After carrying out the processing of described step S45, S43, S55, S53, S61, be not have to finish the change image and generate the flow process of handling under the situation that slide block moves perhaps, return original flow process in the result of determination of step S44/S54.
As described above, in an embodiment of the invention, be provided with: whole adjustment part 12a, it carries out the relevant adjustment of specific image quality with lightness or focus etc. at integral image; And part adjustment part 12b, it further carries out the adjustment relevant with specific image quality in the integral image of having been adjusted by whole adjustment part 12a after the specific image quality, according to a part of image of the different differentiation of value difference of specific image quality.Therefore, an integral body adjustment and the part that can carry out image quality when comparing adjusted.
In addition, in the present embodiment, adjust, be divided into 2 parts by part 1 adjustment part 12b1 and part 2 adjustment part 12b2 and carry out, but be not limited thereto, also can be divided into 3 parts, 4 parts or more than 4 parts about part.And, when cutting apart, generally cut apart in the mode that belongs to arbitrary portion, still, can certainly be only the part of little part of the big part of the characteristic value of image quality or characteristic value etc. be cut apart, carry out the part adjustment.
And, in an embodiment of the invention, show slide sign on the picture right side, but be not limited thereto, can certainly be left side, upside, downside.And whole the adjustment with menu and part adjustment carried out demonstration arranged side by side with menu with the displaying live view image, but is not limited thereto, for example, also can make whole adjust with menu and part adjust with menu be divided into picture about and show, perhaps, be divided into picture about and show.And, the whole adjustment with menu and part adjusted with in the menu any one according to indicating switching to show.
And, in an embodiment of the invention, adjust with menu or part for the integral body adjustment and to show with rod type with menu, still, so long as demonstration that can the visual identity correcting value then is not limited to rod type.That is, using menu and above-mentioned part 2 adjustment with the demonstration of menu as above-mentioned whole the adjustment with menu, above-mentioned part 1 adjustment, be not limited to slide sign, for example also can be the demonstration of digital stage table.And, also can utilize numeral (0, ± 1, ± 2 ...) or mark (a, b, c ...) represent the correcting value of lightness or focus to change shown numeral or mark according to indication.And then, in an embodiment of the invention, when the adjustment of focus, use low-pass filtering, still, can certainly utilize other image processing of high-pass filtering etc.
And, in the above-described embodiment, following example has been described: while can under photograph mode, watch the displaying live view image to carry out the operation that trickle image quality is adjusted, thereby this image is photographed, but this image quality adjustment is not limited to photograph mode, can also be applied to reproduction mode.For example, about adjustment in Fig. 3～lightness illustrated in fig. 7, even after photography with reproduced image as object, also can utilize same adjustment menu to carry out correspondence.And, about in Fig. 8～focus adjustment illustrated in fig. 10, though in reproduction mode, can't adjust the focal position of phtographic lens,, contrast adjustment part and low-pass filtering portion can adjust.That is, in reproduction mode, the menu demonstration is adjusted in overlapping display part in reproduced image, thus, can adjust the resolution sense (focusing sense) of image.
And then, in an embodiment of the invention, as the image quality adjusting device, use digital camera to be illustrated, still, as camera, can be digital single-lens reflex camera, can be small digital camera, also can be the camera that video camera, this dynamic image of video camera are used, and then, can also be the camera that is built in portable phone, portable information terminal (PDA:Personal Digital Assist), the game station etc.Which kind of camera no matter is so long as the device that can handle image just can be used the present invention.And, the situation of implementing above-mentioned flow chart by program is illustrated, still, can certainly implement by hardware.
The invention is not restricted to above-mentioned execution mode, the implementation phase, in the scope that does not break away from its purport, can be out of shape to specialize to structural element.And,, can form various inventions by the appropriate combination of the disclosed a plurality of structural elements of above-mentioned execution mode.For example, can delete some structural elements in the entire infrastructure key element shown in the execution mode.And then, can appropriate combination the structural element of different execution modes.
Claims (8)
1. image quality adjusting device, it has:
Whole adjustment part, it carries out the adjustment relevant with specific image quality to integral image;
The part adjustment part, its to adjusted by above-mentioned whole adjustment part in the integral image after the specific image quality, according to a part of image of the different differentiation of value difference of above-mentioned specific image quality, further carry out and the relevant adjustment of above-mentioned specific image quality; And
Display control unit, it is controlled, and makes to be used to import integral body adjustment at the adjustment indication of above-mentioned whole adjustment part with menu be used to import the part adjustment of indicating at the adjustment of above-mentioned part adjustment part and show with menu.
2. image quality adjusting device according to claim 1, wherein,
Above-mentioned part adjustment part has: the part 1 adjustment part, and it adjusts above-mentioned specific image quality to above-mentioned specific image quality in the above-mentioned integral image greater than the part of setting; And the part 2 adjustment part, it adjusts above-mentioned specific image quality to above-mentioned specific image quality in the above-mentioned integral image less than the part of setting,
Above-mentioned display control unit is controlled, make be used to import part 1 adjustment at the adjustment indication of above-mentioned part 1 adjustment part with menu and the part 2 adjustment that is used to import at the adjustment indication of above-mentioned part 2 adjustment part show with menu, as part adjustment menu.
3. image quality adjusting device according to claim 2, wherein,
Above-mentioned display control unit shows, makes as above-mentioned whole the adjustment with menu, above-mentioned part 1 adjustment menu and above-mentioned part 2 adjustment menu, utilize slide sign to show respectively, and 3 row shows each slide sign abreast.
4. image quality adjusting device according to claim 2, wherein,
Above-mentioned specific image quality is the lightness of image,
Above-mentioned whole adjustment part is adjusted the lightness of above-mentioned integral image,
Proofread and correct the curve of the curve of part brighter than setting in the grey scale curve of lightness or the part darker than this setting above-mentioned part adjustment part, thus the lightness of the arbitrary part in part bright relatively in the integral image or the dark relatively part is adjusted.
5. image quality adjusting device according to claim 1, wherein,
This image quality adjusting device is located in the digital camera that has image pickup part and image processing part at least,
Above-mentioned whole adjustment part utilizes the focal position of above-mentioned image pickup part that above-mentioned specific image quality is adjusted, wherein, and the focusing sense that above-mentioned specific image quality is a general image,
Above-mentioned part adjustment part is adjusted above-mentioned specific image quality by means of the image processing of above-mentioned image processing part, wherein, and the focusing sense that above-mentioned specific image quality is a part of image.
6. image quality adjusting device according to claim 1, wherein,
This image quality adjusting device is located in the digital camera that has image pickup part and image processing part at least,
When photography, above-mentioned display control unit is controlled, and makes above-mentioned whole the adjustment show side by side with the displaying live view image with menu with menu and above-mentioned part adjustment.
7. camera, it has:
Whole adjustment part, it carries out the adjustment relevant with specific image quality to integral image;
The part adjustment part, its to adjusted by above-mentioned whole adjustment part in the integral image after the specific image quality, according to a part of image of the different differentiation of value difference of above-mentioned specific image quality, further carry out and the relevant adjustment of above-mentioned specific image quality; And
Display control unit, it is controlled, makes to be used to import integral body adjustment at the adjustment indication of above-mentioned whole adjustment part with menu be used to import the part adjustment of indicating and show with menu at the adjustment of above-mentioned part adjustment part,
When photography, above-mentioned display control unit is controlled, and makes above-mentioned whole the adjustment show side by side with the displaying live view image with menu with menu and above-mentioned part adjustment.
8. image quality adjustment method, this image quality adjustment method has following steps:
The integral body adjustment of adjustment indication that shows the integral body adjustment usefulness be used to import image quality is with menu and be used to import the part adjustment menu that the adjustment of the part adjustment usefulness of image quality is indicated,
Integral image is carried out the adjustment relevant with specific image quality,
To adjusted by above-mentioned integral body in the integral image after the specific image quality, according to a part of image of the different differentiation of value difference of above-mentioned specific image quality, further carry out and the relevant adjustment of above-mentioned specific image quality.
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| JP2011155449A (en) | 2011-08-11 |
| JP5562664B2 (en) | 2014-07-30 |
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