JP5088397B2 - Image display device, image display method, and program - Google Patents

Description

  The present invention relates to an image display device, an image display method, and a program, and more particularly to a technique for converting an image into an image having a different tone.

  In recent years, with the widespread use of digital cameras, it has become common to store photographs as digital image data. In the case of shooting with a conventional film camera, it was often accompanied by printing, but in the case of image data, it can be browsed with a digital camera that has shot, or it can be browsed with a personal computer that captures image data, etc. There are also changes in the way photos are enjoyed.

  In such a situation, so-called digital photo frames are realized and popularized so that image data can be enjoyed in the same way as a conventional print photograph (for example, Patent Document 1).

  Digital photo frames can realize various display modes such as displaying multiple photos in a slideshow format that could not be done with photo frames that display conventional print photos by taking advantage of the characteristics of digital methods, and image processing For example, an invention has been proposed in which an image having a different tone (for example, a painting tone) can be generated and displayed based on an original photograph (for example, a patent) Reference 2).

  As a result, it can be enjoyed as if it were a picture, not just a photograph. However, in the technique described in Patent Document 2, in order to simulate in units of pixels, the artistry is enhanced in consideration of the entire image. There was also a shortage.

  Therefore, by extracting features such as color information and handwriting information from the picture of the picture actually drawn by the painter, and adding the extracted features to the photographed image, it is highly artistic considering the entire original image A technique for converting to a picture-like image has also been proposed (for example, Patent Document 3).

  Thus, as image processing for obtaining an image with high artistry from the original image, it is possible to realize image processing for generating image data that further enhances the artistic effect by taking the entire original image into consideration.

JP 2009-141678 A JP-A-8-44867 JP 2004-213598 A

  However, the painting tone conversion in the above invention includes many painting tone conversions such as oil painting tone, watercolor painting tone, pastel painting tone, etc., but in order to perform such conversion processing, a large amount of computation by the CPU is required. Therefore, there is a problem that it takes a long time to convert an image.

  If the conversion process takes time, it is difficult to try various conversions on the spot to select an optimal converted image.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an image display device, an image display method, and a program capable of quickly grasping the atmosphere of an image that has been subjected to a plurality of types of tone conversion. And

  It is another object of the present invention to provide an image display device, an image display method, and a program that can quickly select an image to be converted with a desired type of image tone.

In order to solve the above-mentioned problem, in the first aspect of the present invention, the storage unit that stores a plurality of image data representing the main image, the display unit, and the display unit are images that are reduced with respect to the main image. In response to an operation for designating one of the plurality of reduced images displayed on the display unit and a first display control means for displaying a plurality of reduced images, the designated reduced image is displayed in a plurality of types of image tone. A first image tone converting means for converting to any one of the image data, and a converted image image converted by the first image tone converting device in place of the designated reduced image. and second display control means, in response to the page turning operation, leaving a conversion picture adjustment image displayed on said display means, and third display control means for displaying changing a reduced image in the other of the reduced image, the The converted image displayed on the display means A second image tone converting means for converting the reduced image corresponding to the designated converted image tone image into a different image tone in accordance with an operation to be determined, and a different image converted by the second image tone converting means. According to another aspect of the present invention, there is provided an image display device comprising: a fourth display control unit that causes the display unit to display a tone conversion image tone image instead of the designated conversion image tone image .

According to the second aspect of the present invention, the main image of the reduced image corresponding to the selected converted image is displayed in response to an operation for selecting the converted image displayed on the display unit. 2. The image display device according to claim 1 , further comprising a third tone conversion means for converting the tone of the tone image.

According to a third aspect of the present invention, the fourth image tone for converting the main image of the reduced image corresponding to all the converted image-tone images displayed on the display means into the image tone of the selected converted image-tone image. The image display apparatus according to claim 1 , further comprising conversion means .

According to a fourth aspect of the present invention, there is provided the image display device according to the second or third aspect, further comprising means for recording the tone conversion image of the main image in the storage means .

The invention according to claim 5 is an image display method in an image display device comprising a storage means for storing a plurality of image data representing a main image and a display means. In response to the first display control step for displaying a plurality of reduced images, which are reduced images, and an operation for specifying any one of the plurality of reduced images displayed on the display unit, the specified reduced image is displayed. A first tone conversion step for converting into one of a plurality of types of strokes;
Wherein the first conversion picture adjustment image that is an image tone conversion by image tone conversion step in place of the designated contracted image, a second display control step of displaying on the display means, in accordance with the page turning operation, A third display control step for changing the display of the reduced image to another reduced image while leaving the converted image displayed on the display unit, and an operation for designating the converted image displayed on the display unit A second image tone conversion step for converting the reduced image corresponding to the designated converted image tone image to a different image tone, and conversion of the different image tone converted by the second image tone conversion step. The present invention provides an image display method characterized by including a fourth display control step of displaying a picture image on the display means instead of the designated converted picture image .

According to a sixth aspect of the present invention, there is provided a computer-readable program that can be read and executed by an image display device that includes a storage unit that stores a plurality of image data representing a main image and a display unit. And a first display control means for displaying a plurality of reduced images, which are reduced images relative to the main image, and an operation for designating one of the plurality of reduced images displayed on the display means. a first image tone conversion means for converting the reduced image the specified one of a plurality of types of image tone, the specified conversion picture adjustment image that is an image tone converted by said first image tone conversion means In place of the reduced image, the second display control means to be displayed on the display means, and the converted image displayed on the display means is left in response to a page turning operation, and the reduced image is reduced to another size. image And third display control means for displaying changes in response to an operation to specify a conversion picture adjustment image displayed on the display unit, converts the reduced image corresponding to the converted picture adjustment image that is the specified different image characteristic A second image-tone conversion unit and a fourth image-display image displayed on the display unit in place of the designated converted image-tone image instead of the converted image-tone image converted by the second image-tone conversion unit. to function as a display control means that is intended to provide a program characterized.

  According to the present invention, it is possible to quickly see the atmosphere when a plurality of types of image tone conversion are performed on a large number of images. In addition, it is possible to quickly select an image to be converted.

(A) is a front view which shows the external appearance of the image display apparatus based on Embodiment of this invention, The same figure (b) is a side view. It is a block diagram which shows the circuit structure of an image display apparatus. (A) is a figure which shows the storage state of the folder A in a memory card, (b) is a figure which shows the storage state of the folder B. It is a flowchart which shows the process sequence of the image display apparatus in embodiment of this invention. It is a transition diagram in an embodiment. FIG. 6 is a transition diagram following FIG. 5. FIG. 7 is a transition diagram following FIG. 6. FIG. 8 is a transition diagram following FIG. 7. FIG. 9 is another transition diagram following FIG.

  Hereinafter, embodiments of the present invention will be described. FIG. 1A is a front view of an image display device 1 to which the present invention is applied, and FIG. 1B is a side view of the image display device 1. The entire front surface of the image display device 1 is occupied by a display unit configured by a liquid crystal display panel 3 held by the main body 2. On the side surface of the main body 2, a power switch 4, an operation switch 5, and a memory card slot 6 are provided.

  FIG. 2 is a block diagram showing an electrical configuration of the image display apparatus 1. The image display device 1 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12 connected to the CPU 11, a RAM (Random Access memory) 13, a switch unit 15 including the power switch 4 and the operation switch 5. , A display controller 16, a memory card controller 17, a touch panel 19, and a wireless communication unit 20.

  The ROM 12 stores a program for causing the CPU 11 to perform an operation shown in a flowchart described later. The ROM 12 stores a program for tone conversion. For example, an oil painting, a watercolor painting, a pastel painting, a pencil drawing, a crayon drawing, an illustration drawing, a point drawing, an airbrush drawing actually drawn by a painter. Japanese Patent Application Laid-Open No. 2004-213598 which extracts each original image and features such as color information and brush stroke information from these original images, and performs a tone conversion process on the input image by adding the extracted features to create a converted image tone image Also stored is a converted image-tone image creation program based on the technology disclosed in the above.

  The RAM 13 is a working memory in which the CPU 11 temporarily stores various data as necessary. The display controller 16 causes the liquid crystal display panel 3 to display an image represented by the image data by driving the liquid crystal display panel 3 based on the display image data supplied from the CPU 11. The memory card controller 17 is an input / output interface that controls input / output of data between various memory cards 18 detachably mounted in the memory card slot 6 and the CPU 11 connected thereto.

  The touch panel 19 is stacked on the liquid crystal display panel 3 and detects the touch position of the user's finger on the liquid crystal display panel 3. There are various touch input methods such as an optical method and a capacitance method, and the touch input method is not limited to the method, and the position detection may be selected by a cursor.

  The wireless communication unit 20 is connected to the antenna 21 and performs communication processing including terminal authentication processing. The wireless communication unit 20 performs WWW connection control, includes a packet data generation circuit and a packet data restoration circuit, and performs data processing according to a communication protocol.

  The image display apparatus 1 has a unique mail address, and can send and receive mail via the wireless communication unit 20. The image is described on the assumption that it is supplied from an SD card, but it can also be provided from an image downloaded via the Internet or attached to an e-mail. Images received by communication are also recorded in a memory card 18 described later.

  In addition, the image display apparatus 1 is provided with a normal mode and an effect mode as operation modes, and the operation mode can be switched by the user operating the operation switch 5 in a predetermined procedure.

  The normal mode is an operation mode in which an image stored as image data in the memory card 18 is displayed as it is on the liquid crystal display panel 3 as in a general digital photo frame (DPF). An image that can be displayed on the image display device 1 is, for example, an image captured by a digital camera, compressed by a JPEG (Joint Photographic Expert Group) method, and stored as a still image file together with additional information such as a shooting date and time. It is an image. Of course, various image formats such as RAW, BMP, and PNG can be supported. The image source does not have to be taken with a digital camera.

  In the effect mode, the image to be displayed stored in the memory card 18 is converted into a painting-like image having characteristics of the painting, that is, a painting-like image having a specific effect, and the converted painting-like image is converted into a painting-like image. This is an operation mode displayed on the liquid crystal display panel 3.

  Further, in the effect mode, it is possible to select a target painting type, that is, a characteristic (image tone) that can be converted into a converted image, when converting to a painting image. In the present embodiment, selectable image styles are oil painting style, watercolor painting style, pastel painting style, pencil painting style, crayon painting style, illustration painting style, point drawing style, and airbrush painting style. However, the present invention is not limited to this, and it is possible to select conversions that take into account the characteristics of the painter, such as Van Gogh, Monet, and Picasso. Further, another image tone algorithm can be provided by a memory card 18 described later.

  In the present embodiment, a program for converting into eight types of painting tone from oil painting to airbrush painting is stored, but the priority order is (1) oil painting, (2) watercolor painting, (3) Pastel stroke, (4) Pencil stroke, (5) Crayon stroke, (6) Illustration stroke, (7) Point drawing stroke, and (8) Airbrush stroke.

  FIG. 3 is a memory configuration diagram showing the recorded contents of the memory card 18. The memory card 18 is detachably attached to the digital camera, and is provided with a folder A shown in FIG. 3A, a folder B shown in FIG. 3B, and a folder C (not shown). . In the folder A, a large number of images are filed in the JPEG file format along with photographing with the digital camera and recorded as image files F1, F2, F3.

  Each image file F1, F2, F3,... Has a header having data such as EXIF (Exchangeable Image File Format), and image data that is a captured image and is a main image (main images 1, 2, 3,... )) And thumbnail image data (thumbnail 1, 2, 3,...) That is a reduced image of the image data. Since the size of the reduced image to be displayed on the screen differs depending on the size of the display screen, a preview image for display may be created and stored separately from the thumbnail. In the present embodiment, the thumbnail including the preview image is expressed.

  That is, these image files F1, F2, F3,... Are a general digital camera file format. Therefore, the SD card (memory card 18) imaged by the digital camera can be used simply by being inserted into the memory card slot 6.

  Also, in the folder B, image data including a picture-like conversion thumbnail by processing described later, or image data obtained by converting the tone of the main image is compressed by a JPEG method which is a general-purpose file format, and additional information such as conversion date and time is stored. At the same time, it is stored as a still image file.

  A folder C (not shown) is an area in which images received by communication such as mail and download are stored. Here, the area in the memory card 18 is used, but it may be stored in the internal memory so that it can be used without the memory card.

  Hereinafter, a specific operation of the image display apparatus 1 in the effect mode of the present embodiment will be described.

  FIG. 4 is a flowchart showing a processing procedure of the CPU 11 when the effect mode is set in the present embodiment. When the effect mode is set, the CPU 11 executes processing as shown in this flowchart according to the program stored in the ROM 12.

  First, the CPU 11 reads the thumbnail image data of the image files F1 to F16 to be displayed from the memory card 18. Then, based on these thumbnail image data, thumbnails are displayed on the liquid crystal display panel 3 (step S101). Therefore, as a result of the processing in step S101, thumbnails 1 to 16 are displayed as a list on the liquid crystal display panel 3, as shown in FIG. At this time, the CPU 11 also displays a determination button 305, an ALL button 306, a NEXT button 307, and a conversion button 308 at the lower end corner of the liquid crystal display panel 3. The conversion button 308 is a button for converting the main images corresponding to the thumbnails displayed on the liquid crystal display panel 3 to which the tone has been converted into the specified tone.

Next, it is determined whether or not a one-touch (for example, one touch within a predetermined time) is detected as a designation operation for any of the images (16) currently displayed on the liquid crystal display panel 3. (Step S102). If one touch is detected for any of the images, the thumbnail is subjected to the tone conversion (step S10 3 ). At this time, since the oil painting tone is “(1)” in the priority order, the thumbnail is subjected to the image tone conversion processing in the oil painting tone.

Subsequently, the converted tone conversion image is displayed on the liquid crystal display panel 3 (step S10 4 ). Accordingly, as shown in FIG. 5A, when “thumbnail 1” to “thumbnail 16” are displayed on the liquid crystal display panel 3 and “thumbnail 7” is touched once, the display state shown in FIG. Transition to. As a result, “oil picture tone 7” obtained by converting the tone of “thumbnail 7” in oil painting tone is displayed on the liquid crystal display panel 3 together with thumbnails 1 to 16 excluding “thumbnail 7”.

  Further, whether or not the NEXT button 307 has been touched (step S105), whether the ALL button 306 has been touched (step S107), whether the enter button 305 has been touched (step S108), or any of the tone conversions It is determined whether or not the image has been touched for a long time (for example, a continuous touch of 2 seconds or longer, which is equal to or longer than a predetermined time) (step S112), and whether or not the conversion button 308 has been touched (step S114). If none of these buttons 305, 306, 307, and 308 is touched, and if neither of the image tone conversion images is touched for a long time, the process returns from step S114 to step S102.

Therefore, if the user makes one touch of “oil painting tone 7” in the display state shown in FIG. 5B, the determination in step S102 is YES. At this time, since the priority order is “(2) watercolor painting tone” after “(1) oil painting tone”, the thumbnail 7 corresponding to “oil painting tone 7” is subjected to the painting tone conversion processing in watercolor painting tone ( Step S103). Further, the modulation conversion image that has been subjected to the image tone conversion is displayed on the liquid crystal display panel 3 (step S104). Accordingly, the display state of FIG. 5B is changed to the display state of FIG. 6A, and the liquid crystal display panel 3 converts the thumbnail 7 together with the thumbnails 1 to 16 excluding “thumbnail 7” into a watercolor tone. "Watercolor style 7"
Is displayed in place of “oil painting tone 7”.

  Therefore, not only can the image subjected to the desired image tone conversion be quickly viewed, but also it is possible to easily select which image is to be converted into which image tone image.

If the thumbnail is about QCIF size (176 × 144 dots), it is possible to see the nuance of image quality. If the display screen of the image display device 1 is large and the display is 3 rows and 3 columns, thumbnails of QVGA size (320 × 240 dots) are also possible.

  If the user touches the NEXT button 307 in the display state shown in FIG. 6A, the determination in step S105 is YES. Therefore, the CPU 11 proceeds from step S105 to step S106, and changes the image (thumbnail) excluding the tone conversion image to the next thumbnail in the 16 images displayed on the liquid crystal display panel 3.

  Accordingly, the liquid crystal display panel 3 changes from the display state of FIG. 6A to the display state of FIG. 6B, and thumbnails 1 to 6 and 8 to 16 excluding “watercolor tone 7” are the next files 17 to 31. Are replaced with the thumbnails 17 to 31 read from the menu.

  Therefore, if the NEXT button 307 is touched, the tone modulation image (“watercolor tone 7”) that has been converted by the user in the desired manner is maintained as it is, while other undesired thumbnails are newly added. Changed to thumbnail. Thereby, the user can continue the operation for converting the desired thumbnail with the desired image tone even after the desired thumbnail is converted with the desired image tone.

  Further, in the display state shown in FIG. 6B, if the user makes one touch on “thumbnail 24” and “thumbnail 27”, the determination in step S102 is YES. Therefore, the CPU 11 advances the process from step S102 to step S103, and performs the tone conversion of the thumbnail for which the one touch is detected (step S104). At this time, the one-touch for “thumbnail 24” and “thumbnail 27” is the first one-touch, and the priority order is “(1)”, so that the thumbnails are subjected to the tone conversion processing in the oil-painted tone. .

  Subsequently, the converted tone conversion image is displayed on the liquid crystal display panel 3 (step S105). Therefore, the display state shown in FIG. 6B transitions to the display state shown in FIG. That is, in the liquid crystal display panel 3, the thumbnails 17 to 22, 23, 25, 26, 28 to 31, and the “watercolor style 7” are left as they are, and the “oil picture style” is obtained by converting the thumbnail 24 and the thumbnail 27 in the oil style. 24 ”and“ oil painting tone 27 ”are displayed instead of“ thumbnail 24 ”and“ thumbnail 27 ”.

  If the user touches the NEXT button 307 in the display state shown in FIG. 7A, the determination in step S105 is YES. Therefore, the CPU 11 proceeds from step S105 to step S106, and changes the image (thumbnail) excluding the tone conversion image to the next thumbnail in the 16 images displayed on the liquid crystal display panel 3.

  Accordingly, the liquid crystal display panel 3 transitions from the display state of FIG. 7A to the display state of FIG. 7B, and the thumbnails 17 to 17 excluding “watercolor tone 7”, “oil painting tone 24”, and “oil painting tone 27”. Instead of 22, 23, 25, 26, and 28 to 31, the thumbnails 32 to 44 read out from the next 13 files 32 to 44 are displayed.

  Therefore, if the NEXT button 307 is touched, the tone modulation image (“Watercolor Tone 7”), “Oil Painting Tone 24”, “Oil Painting Tone 27”) that the user has converted and desires to change the tone so far will remain as they are. On the other hand, other undesired thumbnails (thumbnail 17-22, 23, 25, 26, 28-31) are changed to new thumbnails (thumbnail 32-44). Thereby, the user can continue the operation for converting the desired thumbnail with the desired image tone even after the desired thumbnail is converted with the desired image tone.

Further, as shown in FIG. 7B, the user 1) makes one touch on the “thumbnail 32” and its converted image, 2 times in total. 2) calculates the one touch on “thumbnail 33” and its converted image. Twice 3) One touch is made three times for “thumbnail 35” and its converted image, and 4) One touch is made three times for “thumbnail 42” and its converted image. Then, whenever the one-touch for the thumbnail is detected, the above-described processing in step S103 and the processing in step S104 are executed.

Therefore, the display state of FIG. 7B transitions to the display state of FIG.
1) “Thumbnail 32”, which has been touched three times in total, is converted to “Pastel Style 32” by the priority “(3) Pastel Style” and displayed.
2) “Thumbnail 33” for which one touch has been made a total of two times is converted into “Watercolor Painting 33” by the priority “(2) Watercolor Painting” and displayed.
3) “Thumbnail 35”, which has been touched three times in total, is displayed after being converted to “Pastel Style 35” by priority “(3) Pastel Style”
4) “Thumbnail 42” in which one touch has been made a total of three times is converted to “Pastel Style 42” according to the priority “(3) Pastel Style” and is displayed.

  In addition, “thumbnail 34”, “thumbnail 36”, “thumbnail 37”, “watercolor tone 7”, “thumbnail 38”, “oil painting tone 24”, “thumbnail 39”, “thumbnail 40”, “oil painting” that were not touched once. Key 27, “Thumbnail 41”, “Thumbnail 43”, and “Thumbnail 44” continue to be displayed as before.

  If the user touches the enter button 305, the determination in step S108 is YES, and the CPU 11 advances the process from step S108 to step S109. That is, if the determination button 305 is touched, image data having unity including all images displayed on the screen of the liquid crystal display panel 3 is generated (step S109).

  Therefore, for example, when the user touches the enter button 305 in the display state of FIG. 8A, as shown in FIG. 8B, all the images are “Pastel Style 32”, “Watercolor Style 33”, “Thumbnail 34”. ”“ Pastel Painting 35 ”“ Thumbnail 36 ”“ Thumbnail 37 ”“ Watercolor Painting 7 ”“ Thumbnail 38 ”“ Oil Painting 24 ”“ Thumbnail 39 ”“ Thumbnail 40 ”“ Oil Painting 27 ”“ Thumbnail 41 ”“ Pastel Painting ” 42 images, “thumbnail 43” and “thumbnail 44”. Therefore, in step S109, as shown in FIG. 8B, image data D00 having unity that can represent these 16 images is generated.

  Further, the CPU 11 processes the generated image data D00 by the JPEG method and compresses it (step S110). Therefore, JPEG format image data “D00.JPEG” is generated from the image data “D00” by the processing in step S110. The generated JPEG image data is stored in the folder B of the memory card 18 (step S110). Therefore, as a result of the processing in step S110, the folder B of the memory card 18 stores the image data “D00.JPEG” in JPEG format as shown in FIG.

  Since the image data “D00.JPEG” stored in the folder B is image data in JPEG format, the memory card 18 is removed from the image display device 1 and mounted in another DPF or the like. Thus, the thumbnails 34, 36, 37, 38, 39, 40, 41, 43, 44 and the modulated images 32, 33, 35, 7, 24, 27, 42 can be reproduced and displayed. Therefore, the effect of being able to see an image that has been subjected to desired image tone conversion quickly on the image display device 1 can also be obtained with other devices. Here, JPEG is taken as an example of the predetermined format, but it is not limited to JPEG. An image of a special format created by the image display device can also be displayed on another image display device via the memory card.

  Incidentally, even if an image based on “D00.JPEG” is displayed on another device, the image data is a single JPEG image, so it is only for quickly grasping the entire atmosphere, and one of the images is included. A reduced image cannot be selected.

  When the ALL button 306 is touched, the determination in step S107 is YES, and the CPU 11 returns from step S107 to step S101 and executes the process from the beginning again. Therefore, when the user needs to redo the tone conversion from the beginning, the user can touch the ALL button 306 to invalidate the tone conversion so far and continue the tone conversion from the beginning. .

  If the user long touches any of the tone conversion images without touching the enter button 305, the ALL button 306, and the conversion button 307, the determinations in step S107 and step S108 are NO and step S112. The determination is YES. Accordingly, the CPU 11 proceeds from step S112 to step S113, and the main image corresponding to the thumbnail corresponding to the image subjected to the tone conversion is subjected to the tone conversion with the tone and displayed.

  In other words, in the state of FIG. 8A, if a long touch is made on “Watercolor Painting 33”, the thumbnail corresponding to “Watercolor Painting 33” is “Thumbnail 33”, and the main image corresponding to “Thumbnail 33” is There is a “main image 33”. Therefore, the image data obtained by converting the “main image 33” with the watercolor painting tone is generated, and the converted painting tone image based on the image data is displayed. Subsequently, the image data obtained by subjecting the main image to the tone conversion is subjected to JPEG processing in the same manner as described above (step S110) and stored in the folder B (S111).

  Therefore, the image obtained by performing the tone conversion of the thumbnail as described above can be used not only to quickly view the image that has been subjected to the desired tone conversion on the image display apparatus 1, but as a result of the viewing, the image having the desired tone can be obtained. It is also possible to view the corresponding main image after converting it with the above-mentioned image tone and save it.

  Also, assuming that the user touches the conversion button 307 without touching the enter button 305 and the ALL button 306 and without touching any of the image-conversion images, the processing in steps S107, S108, and S112 is performed. The determination is NO, and the determination in step S114 is YES. Accordingly, the CPU 11 proceeds from step S114 to step S115, performs the tone conversion of the main image corresponding to the thumbnail of each image tone conversion image with the image tone, and sequentially displays the images.

That is, if the conversion button is touched in the state of FIG. 8A, seven image modulation images “Pastel Image 32” “Watercolor Image 33” “Pastel Image 35” “Watercolor Image 7” “Oil” There are painting style 24, oil painting style 27, and pastel style 42. And
1) The thumbnail corresponding to “Pastel Painting 32” is “Thumbnail 32”.
2) The thumbnail corresponding to “Watercolor Painting 33” is “Thumbnail 33”.
3) The thumbnail corresponding to “Pastel Painting 35” is “Thumbnail 35”.
4) The thumbnail corresponding to “Watercolor Painting 7” is “Thumbnail 7”.
5) The thumbnail corresponding to “oil painting style 24” is “thumbnail 24”.
6) The thumbnail corresponding to “oil painting style 27” is “thumbnail 27”.
7) The thumbnail corresponding to “Pastel Painting 42” is “Thumbnail 42”.

Therefore,
1) “Main image 32” corresponding to “Thumbnail 32” is in pastel tones,
2) “Main image 33” corresponding to “Thumbnail 33” in watercolor style,
3) “Main image 35” corresponding to “Thumbnail 35” in pastel tones,
4) “Main image 7” corresponding to “Thumbnail 7” in watercolor style,
5) “Main image 24” corresponding to “Thumbnail 24” in oil painting style,
6) “Real image 27” corresponding to “Thumbnail 27” in oil painting style,
7) “Main image 42” corresponding to “Thumbnail 42”
Image data that has undergone image tone conversion is generated, and converted image tone images based on the image data are sequentially displayed. Subsequently, the image data obtained by subjecting the main image to the tone conversion is subjected to JPEG processing in the same manner as described above (step S110) and stored in the folder B (S111).

  Therefore, the image obtained by performing the tone conversion of the thumbnail as described above can be used not only to quickly view the image that has been subjected to the desired tone conversion on the image display apparatus 1, but as a result of the viewing, the image having the desired tone can be obtained. All of the corresponding main images can be converted and viewed in the relevant tone, and stored.

  In the present embodiment, as shown in FIG. 8B, data including an image obtained by converting a desired thumbnail finally determined in a state including a thumbnail with a desired tone is recorded in JPEG. I did it. However, as shown in FIG. 9, the painting images excluding the thumbnails “Pastel Painting 32” “Watercolor Painting 33” “Pastel Painting 35” “Watercolor Painting 7” “Oil Painting 24” “Oil Painting 27” “Pastel Painting” The data D01 having unity that can display the key 42 is generated, and D01.JPEG obtained by JPEG processing is recorded in the folder B of the memory card 18 as shown in FIG. Good. In this way, it is possible to record a JPEG image consisting only of an image obtained by converting the finally determined desired thumbnail with a desired image quality and to reproduce it on another device.

  In the embodiments, the case where the present invention is applied to a digital photo frame has been described. However, the present invention is not limited to a digital photo frame. For example, the present invention is not limited to a digital photo frame. The present invention can also be applied to electronic devices such as cameras and printers.

DESCRIPTION OF SYMBOLS 1 Image display apparatus 2 Main body 3 Liquid crystal display panel 5 Operation switch 6 Memory card slot 11 CPU
12 ROM
13 RAM
16 Display controller 18 Memory card 19 Touch panel 305 Enter button 306 ALL button 307 NEXT button

Claims (6)

Storage means for storing a plurality of image data representing the main image;
Display means;
First display control means for displaying a plurality of reduced images, which are images reduced with respect to the main image, on the display means;
Depending on the operation of designating one of said plurality of reduced images displayed on said display means, a first image tone conversion means for converting the reduced image the specified one of a plurality of types of image tone,
Second display control means for causing the display means to display, instead of the designated reduced image, the converted image image that has undergone the image conversion by the first image conversion means;
A third display control means for changing the display of the reduced image to another reduced image while leaving the converted image image displayed on the display means in response to a page turning operation;
A second image conversion unit that converts a reduced image corresponding to the designated converted image into a different image according to an operation for specifying the converted image displayed on the display unit;
A fourth display control means for causing the display means to display, instead of the designated converted image tone image, the converted image tone image having a different tone converted by the second image tone converting means. An image display device comprising: In response to an operation for selecting the converted image, which is displayed on the display means, the main image of the reduced image corresponding to the selected converted image is converted to the image of the selected converted image. The image display apparatus according to claim 1 , further comprising third image tone conversion means . The image processing apparatus further includes a fourth image conversion unit that converts the main image of the reduced image corresponding to all the converted image images displayed on the display unit into the image image of the selected converted image. The image display device according to claim 1, wherein: 4. The image display device according to claim 2, further comprising means for recording a tone conversion image of the main image in the storage means . An image display method in an image display device comprising storage means for storing a plurality of image data representing a main image and display means,
A first display control step of displaying a plurality of reduced images, which are images reduced with respect to the main image, on the display means;
A first tone conversion step of converting the specified reduced image into one of a plurality of types of image in response to an operation of specifying any of the plurality of reduced images displayed on the display means;
A second display control step for causing the display means to display instead of the designated reduced image, the converted image image that has undergone image conversion in the first image conversion step;
A third display control step for changing the display of the reduced image to another reduced image, leaving the converted image displayed on the display unit in response to a page turning operation;
A second image conversion step of converting a reduced image corresponding to the designated converted image into a different image in accordance with an operation of specifying the converted image displayed on the display unit;
A fourth display control step of causing the display means to display a converted image image of a different image tone converted by the second image tone conversion step, instead of the designated converted image image. An image display method comprising: A computer-readable program that can be read and executed by an image display device that includes a storage unit that stores a plurality of image data representing the main image and a display unit,
The computer,
First display control means for displaying a plurality of reduced images, which are images reduced with respect to the main image, on the display means;
Depending on the operation of designating one of said plurality of reduced images displayed on said display means, a first image tone conversion means for converting the reduced image the specified one of a plurality of types of image tone,
Second display control means for causing the display means to display, instead of the designated reduced image, the converted image image that has undergone the image conversion by the first image conversion means;
A third display control means for changing the display of the reduced image to another reduced image while leaving the converted image image displayed on the display means in response to a page turning operation;
A second image conversion unit that converts a reduced image corresponding to the designated converted image into a different image according to an operation for specifying the converted image displayed on the display unit;
A fourth display control means for causing the display means to display, instead of the designated converted image tone image, the converted image tone image having a different tone converted by the second image tone converting means. A program characterized by making it function.

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