JP2002152590A - Image processor, image processing system, image indication method, and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image processor which can avoid complicated operation for changing or selecting an image source as an indication object and improve operability even under environment with a number of sources. SOLUTION: An operation means 300 handles a plurality of sources according to their hierarchical structures, and designates a second source hierarchy for a first source hierarchy. An image changing means 241 changes an image supplied from the first source to an image supplied from the second source by an image changing pattern that is predetermined among a plurality of image changing patterns, according to the designation of the operation means 300 that the relation between the first source hierarchy and the second source hierarchy is different or identical.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an image processing apparatus and an image processing apparatus used for a monitor of a television broadcast receiver having a plurality of input sources (inputs from source sources such as broadcast waves and VTRs). System, image display method,
The present invention relates to a storage medium storing computer-readable processing steps for executing the same.

[0002]

2. Description of the Related Art Conventionally, as a source for displaying on a monitor such as a television broadcast receiver (TV receiver), a broadcast wave (terrestrial wave, satellite broadcast, etc.) or an externally connected video tape recorder has been used. (VTR), etc., and the user selects or switches a desired input source from among the inputs (source inputs) from the plurality of source sources using a remote controller (remote controller) or the like, and displays the monitor display. Let it.

[0003]

However, as described above, the input source to the image display device such as a monitor is a broadcast wave or a video device, and the number of input sources is not so large. Alternatively, the operation for switching may be a simple operation.

[0004] However, since the end of 2000, digital BS broadcasting has been started, and digital terrestrial broadcasting has also been planned. Increase the number of In addition, for AV equipment,
In addition, media that can be randomly accessed, such as a DVD, and a recording medium using a hard disk may be widely used.

[0005] As described above, as the number of input sources to the image display device increases, the operation for selecting an input source from those source sources also becomes complicated. For example, when the input source is unexpectedly switched due to a user's erroneous operation, it is difficult for the user to instantaneously understand which source has been switched.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to eliminate the above-mentioned drawbacks, and is intended to switch or select the source of an image to be displayed, even in an abundant source environment. Provided is an image processing device, an image processing system, an image display method, and a storage medium in which a computer stores processing steps for executing the same, which can avoid the complication of operation and improve operability. With the goal.

[0007]

For such a purpose,
A first invention is an image processing apparatus capable of switching a first image supplied from a first source source to a second image supplied from a second source source and rendering an image, A plurality of source sources including at least the first source source and the second source source are handled in a hierarchical structure, and a plurality of source sources are determined based on a relationship between the hierarchy of the first source source and the hierarchy of the second source source. Image switching means for performing image switching according to an arbitrary image switching pattern among the image switching patterns.

[0008] In a second aspect based on the first aspect,
The second to at least the hierarchy of the first source
Operating means for designating the hierarchy of the source of the image, wherein the image switching means changes the first image to the second image by the arbitrary image switching pattern based on the designation by the operating means. It is characterized by switching.

[0009] In a third aspect based on the first aspect,
When the hierarchy of the first source source is different from the hierarchy of the second source source, the image switching means performs image switching based on an image switching pattern that gradually switches images over a time that can be sufficiently perceived by a human. Executing, when the hierarchy of the first source source and the hierarchy of the second source source are the same, image switching is performed by an image switching pattern that switches images instantaneously.

In a fourth aspect based on the second aspect,
The image switching means interrupts the switching from the first image to the second image and returns to the drawing state of the first image when a cancellation instruction is given by the operation means. And

According to a fifth aspect, in the first aspect,
The image switching means includes means for drawing the input image vertically and horizontally by changing the enlargement / reduction ratio; means for drawing the input image by changing the display position; means for drawing the input image by changing the display range thereof; Means for drawing the periphery of the image by changing the trimming amount, means for drawing the image quality of the input image by changing the image quality,
Means for changing the mixture ratio of two input images and performing multiple drawing.

In a sixth aspect based on the first aspect,
The plurality of image switching patterns each include a pattern having a different perceptual effect.

A seventh aspect of the present invention is an image processing system in which a plurality of devices are communicably connected to each other, wherein at least one of the plurality of devices is one of the first to sixth aspects.
And a function of the image processing apparatus according to any one of the above.

In an eighth aspect, a first image supplied from a first source is converted to a second image supplied from a second source.
An image display method for switching to and displaying an image, wherein a management step of managing a plurality of source sources including at least the first source source and the second source source in a hierarchical structure; Source source hierarchy and second
An image switching step of executing image switching from the first image to the second image by an arbitrary image switching pattern among the plurality of image switching patterns based on the hierarchical relationship of the source sources of It is characterized by including.

According to a ninth aspect, in the eighth aspect,
The image switching step includes the first step performed by a user.
An arbitrary image switching pattern among the plurality of image switching patterns is set based on an operation for designating the second source source hierarchy with respect to the source source hierarchy of the source source. The method includes the step of performing image switching from the first image to the second image.

In a tenth aspect based on the eighth aspect, in the image switching step, when the hierarchy of the first source source and the hierarchy of the second source source are different, a human can sufficiently perceive. Performing image switching from the first image to the second image by an image switching pattern for gradually switching images over a predetermined time; In the case where the layers of the source source are the same layer, the first switching is performed by an image switching pattern that switches images instantaneously within a predetermined time period that cannot be perceived by humans.
Executing the image switching from the second image to the second image.

In an eleventh aspect based on the tenth aspect, the image switching pattern in which the image is gradually switched over a predetermined period of time that can be sufficiently perceived by a human is formed on the first image by the second mode. A pattern in which the image of the second image gradually appears from the left or right or the vertical direction, and the second image on the first image.
And at least one of a pattern in which the first image is erased by gradually reducing the size of the first image and a pattern in which the second image is gradually enlarged to appear. I do.

In a twelfth aspect based on the eighth aspect, the image switching step is performed when the user performs an operation for instructing cancellation of the image switching.
Automatically returning to the state of the image.

In a thirteenth aspect based on the eighth aspect, in the image switching step, when an operation for instructing cancellation of the image switching is performed by a user, the image switching operation is interrupted, and the image switching operation is stopped. The method includes a step of automatically returning to a state before the start of the image switching operation by an image switching operation reverse to the switching operation.

According to a fourteenth aspect of the present invention, a program for causing a computer to realize the functions of the image processing apparatus according to any one of claims 1 to 6 or the functions of the image processing system according to claim 7 is readable by a computer. It is characterized by being recorded on a storage medium.

A fifteenth invention is characterized in that a program for causing a computer to execute the processing steps of the image display method according to any one of claims 8 to 13 is recorded on a computer-readable storage medium.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) The present invention provides, for example,
It is applied to an image processing apparatus 100 as shown in FIG. In particular, the image processing apparatus 100 according to the present embodiment has a hierarchical structure for a method of selecting a source source (broadcast wave, VTR, DVD, or the like) that is a provider of an image, and a predetermined time that can be sufficiently perceived by humans , A plurality of types of image switching patterns for gradually switching images are prepared, and by associating these image switching patterns with each layer, it is presented to the user at which layer the source source switching operation is being performed. , When the user notices an erroneous operation related to the switching operation of the source source,
The switching operation of the source source is stopped, the state is returned to the state immediately before, and the erroneous operation is invalidated.

<Image Switching Pattern> First, before a detailed description of the image processing apparatus 100, patterns of “wipe switching”, “zoom switching”, and “fade switching” will be described as examples of a plurality of types of image switching patterns. explain.

(1) "Wipe switching" FIGS. 2 to 4 schematically show the display effect of "wipe switching". These FIGS. 2 to 4 (a) to (d)
As shown in FIG. 5, an image of a Japanese map (hereinafter, referred to as an “exit image”) input from a first source is converted into an image of a bullet train (hereinafter, “appearance image”) input from a second source.
). Note that actually the exit image and the appearance image are both moving images, but are shown as still images in FIGS. 2 to 4 for simplicity of explanation.

Specifically, first, the screens shown in FIGS. 2 to 4A show the screen display state immediately before the start of "wipe switching", and the screens shown in FIGS. 2B and 2C. Is
The screen display state during execution of “wipe switching” is shown, and the screen shown in FIG. 11D shows the screen display state immediately after the end of “wipe switching”.

In the "wipe switching" shown in FIGS. 2A to 2D, the appearance image is gradually moved from the right side of the screen and is superimposed on the exit image while the display position of the exit image is fixed. This is a mode in which the exit image and the appearing image are exchanged (hereinafter, referred to as “wipe-in”).

In the "wipe switching" shown in FIGS. 3A to 3D, contrary to the "wipe-in", the exit image is gradually moved to the left of the screen, and the display position is fixed to the back. This is a mode in which a leaving image is replaced with a appearing image by displaying the appearing image (hereinafter, referred to as “wipeout”).

In the "wipe switching" shown in FIGS. 4A to 4D, the appearance image is gradually moved to the left side of the screen, and the exit image is gradually moved from the right side of the screen as if it were pushed out. (Hereinafter, referred to as "wipe swap").

FIG. 5 shows a configuration for realizing, for example, the "wipe-in" image switching pattern shown in FIG. 2 among "wipe-in", "wipe-out", and "wipe swap". is there.

In FIG. 5, "211" and "22"
1 "are a first source switch and a second switch, respectively.
Source source changeover switch. “212” and “22”
“2” is a first resolution converter and a second resolution converter, respectively, and “213” and “223” are respectively
A first image memory and a second image memory; “23
"1" is an output image changeover switch, and "242" is
This is a synchronization signal source for generating a read synchronization signal for the first image memory 213 and the second image memory 223.
“241” is a component part 211-213, 221-22
3, 231 and 242 that control the respective operations
PU. “241a” is a program memory in which a processing program for operation control in the CPU 241 is stored.

In the configuration shown in FIG. 5, first, the first
The source source changeover switch 211 and the second source source changeover switch 221 are independently controlled by the CPU 241 to input a source (image) input to the corresponding first resolution converter 212 or second resolution converter 222. )
Is selected from the input sources from the input terminals A, B, and C.

The first resolution converter 212 and the second resolution converter 222 are respectively provided with a corresponding first source switch 211 or second source switch 22.
Regardless of the value of the resolution (number of pixels) of the input source from 1 to any value, the image data is converted to a predetermined resolution, for example, 1280 × 720 pixels in real time, while being converted to the corresponding image memory 213 or 223 at the next stage. Write to.

The synchronization signal source 242 is controlled by the image memory 213 or the image memory 22 under the control of the CPU 241.
3 as well as a timing signal for the output image changeover switch 231. As a result, the image data written in each of the image memory 213 and the image memory 223 is read in accordance with the two types of synchronization signals generated by the synchronization signal source 242. The output image switch 231 selects one of the image data read from the image memory 213 and the image data read from the image memory 223 in accordance with the timing signal generated by the synchronization signal source 242. Output.

FIG. 6 shows the synchronization signal and the timing signal generated by the synchronization signal source 242 in the horizontal running direction. FIG. 6A shows the timing for realizing the screen shown in FIG. 2A (the screen display state immediately before the start of “wipe switching”), and FIG.
6C and 6C show timings for realizing the screens shown in FIGS. 2B and 2C (screen display state during execution of “wipe switching”), and FIG. c)
Shows the timing for realizing the screen shown in FIG. 2D (the screen display state immediately after the end of “wipe switching”).

In each of FIGS. 6A to 6D, "Input 1" indicates image data read from the first image memory 213 and a horizontal synchronizing signal therefor, and "Input 2" indicates a second synchronization signal. The image data read from the image memory 223 and the horizontal synchronizing signal therefor are shown. “Output” is an output image switch 231.
3 shows the image data selected and output and the horizontal synchronization signal thereof. Further, a black portion indicates output image data of the first image memory 213, and a hatched portion indicates output image data of the second image memory 223.

FIG. 7 is a flowchart showing a processing program read out from the program memory 241a and executed by the CPU 241 in order to perform the above-described operation (operation relating to “wipe-in”). Less than,
With reference to the timing chart of FIG. 6 and the flowchart of FIG. 7, an operation for realizing “wipe-in” by the configuration of FIG. 5 will be specifically described.

In the following description, for simplicity,
The input source from the input terminal A is the exit image data,
It is assumed that the input source from the input terminal B is appearance image data. Before the “wipe-in” starts, the first source switch 211 selects the input source from the input terminal A, and the output image switch 231 selects the image data from the first image memory 213. I do.

Step S252: The CPU 241 sets the second
The input source of the input terminal B is selected.

Step S253: The CPU 241 sets "1280" to the timing offset value T. Here, the timing offset value T is such that the image data is read from the second image memory 223 at a timing delayed by “T” pixels from the timing at which the image data is read from the first image memory 213. This is a value instructed to the synchronization signal source 242.

At the same time as the start of reading the image data in the effective image range in the second image memory 223, the CPU 241 sends the second image memory 223 to the synchronization signal source 242.
To generate a synchronization signal. Thus, the output image changeover switch 231 selects the output image data of the second image memory 223 according to the synchronization signal from the synchronization signal source 242. Regarding the timing at this time,
This is indicated by "t1" in FIG. 2 and FIG.

The CPU 241 has a synchronization signal source 242
To the output image changeover switch 231 to generate a timing. As a result, the output image changeover switch 231 switches the first image memory 213 at the horizontal synchronization signal portion of the output image data of the first image memory 213 (the horizontal synchronization signal portion of “Input 1”, ie, the timing indicated by “t2”). Select the output image data.

Here, when the timing offset value T is set to, for example, "500", the image data ("Input 1") of the first image memory 213 is set at the beginning of the effective image range (the image 500 on the way from the left end)
After reading up to the pixel, the image data (“Input 2”) of the second image memory 223 is subsequently stored in 780 pixels (1280−1280) from the left end of the effective image range.
(500 = 780) minutes. Similarly, the image data (“Input 1”) of the first image memory 213 for 500 pixels is read from the subsequent lines.
The image data of the second image memory 223 (“Input
2 ″) is read out for 780 pixels.

Here, the timing offset value T is set to "1".
280 "and the number of horizontal pixels of the output image is also 1
Since the number of pixels is 280, only the image data (“Input 1”) of the first image memory 213 is output. This is the state shown in FIG. 2 and FIG. 6A.

Step S254, Step S255: C
The PU 241 ends the output of the image data in the vertical direction,
Upon recognizing that the image output for one frame has been completed (step S254), it is determined whether or not the timing offset value T is “0” (step S255).

Step S256: If the result of determination in step S255 is that the timing offset value T is not "0", the CPU 241 resets the value obtained by subtracting "10" from the timing offset value T to the timing offset value T, and again Returning to step S254, the subsequent processing steps are repeatedly executed.

Steps S257 to S258: The processing steps of steps S254 to S256 are repeatedly executed, and if the timing offset value T becomes "0" as a result of the determination of step S255, the processing from step S257 is executed. Is done.

Here, when the timing offset value T is "0"
The period in which <T <1280 ”corresponds to the period shown in FIGS.
(B) and (c). And
The state shown in FIG. 2 and FIG. 6D is the state where the timing offset value T = "0".

Therefore, the timing offset value T =
When the value becomes “0”, the CPU 241 causes the first source source switch 211 to select the input source of the input terminal B (step S257). Also, the CPU 241
Indicates that the output image changeover switch 231 that had selected the image data (“Input1”) of the first image memory 213 and the image data (“Input2”) of the second image memory 223 at timings t1 and t2. ,
The image data of the first image memory 213 (“Input
In order to fix and select only 1 ”), the synchronization signal source 242 is instructed to generate a timing signal corresponding thereto (step S258). The image data (“Input 1”) in the memory 213 is fixedly selected, and the process ends in step S258.

In the above processing, for example, if the V rate is set to 60 Hz, "10" is subtracted from the timing offset value T in step S256. Therefore, it takes 128 frames, that is, about 2 seconds, to switch the entire screen. A "wipe-in" will be done.

By changing the switching timing of the output image changeover switch 231 and the setting method of the readout timing of the image data (“Input 2”) of the second image memory 223, the configuration of FIG. The “wipe out” shown in FIG. 4 and the “wipe swap” shown in FIG. 4 described above can also be realized. Further, by setting the timing offset value T from “0” or the like, “ "Wipe switching" is also feasible. Furthermore, it is also possible to apply these "wipe switching" in the vertical direction and perform "wipe switching" in the vertical direction.

(2) "Zoom switching" FIGS. 8 to 13 schematically show the display effect of "zoom switching". These FIGS. 8 to 13 (a)
As shown in (d), the image of the Japan map (exit image) input from the first source is gradually switched to the image of the bullet train (appearance image) input from the second source. I have. In addition, actually, both the exit image and the appearance image,
Although it is a moving image, it is expressed as a still image in FIGS.

More specifically, for example, FIG.
The "zoom switching" shown in FIG. 4D is a mode in which the appearance image is gradually enlarged from the center of the screen and superimposed on the exit image while the display center position of the exit image is fixed, so that the exit image and the appearance image are switched. (Hereinafter referred to as "zoom in")
It is.

In the "zoom switching" shown in FIGS. 9A to 9D, contrary to the "zoom-in", the exit image is gradually reduced toward the center of the screen, and is finally erased. This is a mode (hereinafter, referred to as “zoom out”) in which a leaving image and a appearing image are switched by displaying a appearing image whose display position is fixed on the back surface.

The "zoom switching" shown in FIGS. 10 (a) to 10 (d) is "slim-in" and is shown in FIG. 11 (a).
"Zoom switching" shown in (d) is "slim out". "Zoom switching" shown in FIGS.
Is an “enlarge in” in which the appearance screen is expanded from the center of the screen without changing the enlargement ratio, and the display range is expanded. The “zoom switching” shown in FIGS. This is a "narrow-out" in which the enlargement ratio does not change from the center and the display range narrows and disappears.

The above-described "zoom switching" can be realized by applying the configuration for realizing the above-mentioned "wipe switching" (see FIG. 5), but differs in the following points. still,
Here, for simplicity of description, a configuration for realizing “zoom in” will be described as an example.

First, the control method of the CPU 241 and the timing of the synchronization signal generated by the synchronization signal source 242 are different.

Further, as in the case of “wipe switching”, the first resolution converter 212 has a predetermined resolution, for example, regardless of the value of the resolution (number of pixels) of the input source.
The data is written into the first image memory 213 at the next stage while converting the data into 1280 × 720 pixels in real time. on the other hand,
The second resolution converter 222 performs scaling processing on the input source in real time according to the resolution (number of pixels) of the input source and the zoom ratio Z managed by the CPU 241.
The data is written to the second image memory 223 at the next stage.

FIG. 14 shows the synchronization signal and timing signal generated by the synchronization signal source 242 in the vertical scanning direction. In FIG. 14, similarly to FIG. 6, a black portion indicates output image data of the first image memory 213, and a hatched portion indicates output image data of the second image memory 223.

Here, in “Output” in FIGS. 14B and 14C, the black-painted portion and the hatched portion are 2
During the period represented by the tiers, when viewed in the horizontal direction, the image data (“Inpu”) in the first image memory 213 is displayed.
t1 ") and a period for outputting the image data (" Input2 ") of the second image memory 223. Such a period is specifically enlarged and represented in the horizontal direction. FIG.

FIG. 16 shows that the CPU 241 executes the program memory 2 to execute the operation related to “zoom in”.
The processing program read out from 41a and executed is shown by a flowchart. Hereinafter, FIG.
With reference to the timing chart of FIG. 15 (or the flowchart of FIG. 15) and the flowchart of FIG. 16, an operation for realizing “zoom-in” by the configuration of FIG. 5 will be specifically described.

In the following description, for simplicity,
The input source from the input terminal A is the exit image data,
It is assumed that the input source from the input terminal B is appearance image data. Before the start of “zoom-in”, the first source switch 211 selects the input source from the input terminal A, and the output image switch 231 selects the image data from the first image memory 213. I do.

Step S262: The CPU 241 sets the second
The input source of the input terminal B is selected.

Step S263: The CPU 241 sets "0" for the zoom ratio Z.

Here, the zoom ratio Z ranges from "0" to "40".
And the actual image reduction ratio is set to Z / 40 times. The value “40” is a common divisor of the number of pixels 720 in the vertical direction and the number of pixels 1280 in the horizontal direction. When the zoom ratio Z is “n”, the screen display start position (the timing H1 shown in FIGS. 8 and 14) of the image reduced in the vertical direction is the 360−9 × Zth pixel, and the screen display ends. Position (timing H2 shown in FIGS. 8 and 14)
Is the 360-9 × Z pixel. The screen display start position (the timing t1 shown in FIG. 8 and FIG. 15) of the image reduced in the horizontal direction is the 640−16 × Z line, and the screen display end position (FIG. 8 and FIG.
The timing t2) indicated by 5 is the 640 + 16 × Z line. Therefore, the timings H1 to H
2, and only during the period between the timings t1 and t2 in the horizontal direction, the selection by the output image changeover switch 231 is performed using the image data (“In”) of the second image memory 223.
put2 ").

At the stage of step S263, the zoom Z
= "0", timing H1 = timing H2, timing t1 = timing t2, and image reduction ratio = 0,
In the output image changeover switch 231, the first image memory 2
Thirteen image data (“Input 1”) are selected and output. This is the state shown in FIG. 8 and FIG. 14 (or FIG. 15) (a).

Step S264, Step S265: C
The PU 241 ends the output of the image data in the vertical direction,
When recognizing that the image output for one frame has been completed (step S264), it is determined whether or not the zoom ratio Z is “40” (step S265).

Step S266: If the result of determination in step S265 is that the zoom ratio Z is not "40", the CPU 2
Reference numeral 41 resets the value obtained by adding "1" to the zoom ratio Z to the zoom ratio, returns to step S264, and repeatedly executes the subsequent processing steps.

Steps S267 to S268: The processing steps of steps S264 to S266 are repeatedly executed. If the result of determination in step S265 is that the zoom ratio Z has become "40", the processing from step S267 is executed. You.

Here, the period in which the zoom ratio is “0 <T <40” corresponds to the period shown in FIGS. 8 and 14 (or FIG. 15).
(B) and (c). And
The state shown in (d) of FIG. 8 and FIG. 14 (or FIG. 15) is a state where the zoom ratio Z = “40”.

Therefore, when the zoom ratio Z = “40”,
The CPU 241 causes the first source source changeover switch 211 to select the input source of the input terminal B (step S267). Further, the CPU 241 controls the first image memory 213 during the period between the timings H1 and H2 in the vertical direction and the period between the timings t1 and t2 in the horizontal direction.
The image data (“Input 1”) of the first image memory 213 is output to the output image changeover switch 231 that has selected the image data (“Input 1”) of the second image memory 223 and the image data (“Input 2”) of the second image memory 223. ), The synchronization signal source 242 is instructed to generate a corresponding timing signal (step S268). As a result, the output image changeover switch 231 fixes and selects the image data (“Input 1”) in the first image memory 213. This processing ends in this step S268.

In the above processing, for example, if the V rate is 60 Hz, the zoom ratio Z is incremented by "1" every 1 V, so that 40 frames are required for switching the entire screen.
That is, "zoom-in" is performed in about 0.67 seconds.

The function of step S264 which waits for the output of the 1V image data is overlapped with the function of step S264.
It is possible to realize "zoom-in" in which images are slowly exchanged over about two seconds. If the method of setting the switching timing of the output image switch 231 and the timing of reading the image data (“Input 2”) of the second image memory 223 is changed, the configuration shown in FIG.
The “zoom out” shown in FIG. 9 and the “wipe swap” shown in FIG. 4 can also be realized. Further, the horizontal and vertical image display positions may be fixed at the upper left of the screen. If this processing is used only in the horizontal direction, the “slim-in” as shown in FIG.
Alternatively, “slim out” as shown in FIG. 11 can be realized, and the present process may be applied only in the vertical direction. Further, if the size of only the image display frame is simply changed with time without performing the image reduction processing, the “enlarge in” as shown in FIG. 12 or the “enlarge in” as shown in FIG. Narrow out is also possible.

(3) "Fade switching" FIGS. 17 to 19 schematically show the display effect of "fade switching". As shown in (a) to (d) of FIGS. 17 to 19, from the image of the Japan map (exit image) input from the first source, the bullet train of the Shinkansen input from the second source is displayed. It is gradually switching to images (appearing images). Note that, actually, both the exit image and the appearance image are moving images, but in FIGS. 17 to 19, they are represented as still images for simplicity of explanation.

More specifically, first, FIG.
In the “fade switching” shown in (d), the exit image is gradually faded, and conversely, the appearance image is gradually darkened and is superimposed on the exit image, thereby exchanging the exit image and the appearance image ( Hereinafter, this is referred to as “fade-in / fade-out”.

The "fade switching" shown in FIGS. 18A to 18D is based on the fact that the appearance image gradually appears dark after the exit image gradually becomes dark, and the appearance image gradually appears after the entire screen becomes a black screen.
This is a mode in which the exit image and the appearance image are exchanged (hereinafter, referred to as “blackout fade”).

The “fade switching” shown in FIGS. 19A to 19D is based on the fact that the appearance image gradually appears white after the exit image gradually becomes white, and then the appearance image gradually appears.
This is a mode in which a leaving image and an appearance image are exchanged (hereinafter, referred to as “whiteout fade”).

FIG. 20 realizes the image switching pattern of “fade-in / fade-out” shown in FIG. 17 out of “fade-in / fade-out”, “blackout-fade” and “white-outfade”. FIG. In the configuration of FIG. 20, portions that function similarly to the configuration of FIG. 5 are given the same reference numerals, and detailed description thereof will be omitted.

In the configuration of FIG. 20, the first multiplication circuit 214 and the second multiplication circuit 224 are added to the configuration of FIG.
And an adder 232 is provided in place of the output image changeover switch 231.

The operation of the configuration shown in FIG. 20 includes the process of writing image data to the first image memory 213 and the second image memory 223 while converting in real time at a predetermined resolution (for example, 1280 × 720 pixels). Is
This is the same as the case of “wipe switching”.

In the “fade switching”, the synchronization signal source 242 is used to read out image data from the two image memories of the first image memory 213 and the second image memory 223.
Is a single system, and is configured so that pixel data at the same location is read out at the same time and supplied to the dedicated first multiplication circuit 214 and second multiplication circuit 224 respectively arranged at the next stage. Have been.

The first multiplying circuit 214 and the second multiplying circuit 224 respectively operate on the image data from the corresponding first image memory 213 or the second image memory 223.
The blend ratio α (0 to 100) specified by the CPU 241.
%) And output. Here, the first multiplication circuit 21
The blend ratio specified by the CPU 241 for “4” is “α”.
The blend ratio specified by the CPU 241 to the second multiplying circuit 224 is “1−α” (100% −α%).

The adder 232 adds the outputs from the first and second multiplication circuits 214 and 224 and outputs the result. Therefore, the adder 232 multiplexes the image data (“Input 1”) of the first image memory 213 and the image data (“Input 2”) of the second image memory 223 at a ratio of α: 1−α. The synthesized image data is output.

FIG. 21 conceptually shows the transition of the output image together with the timing of the vertical synchronizing signal. The black portion indicates the output image data of the first image memory 213, and the hatched portion indicates the output image data. 2 shows output image data of the second image memory 223.

FIG. 22 is a flowchart showing a processing program read out from the program memory 241a and executed by the CPU 241 in order to perform an operation relating to “fade-in / fade-out”.
Hereinafter, an operation for realizing “fade-in / fade-out” by the configuration of FIG. 20 will be specifically described with reference to the timing chart of FIG. 21 and the flowchart of FIG.

In the following description, for simplicity,
The input source from the input terminal A is the exit image data,
It is assumed that the input source from the input terminal B is appearance image data. Prior to the start of “fade-in / fade-out”, the first source switch 211 selects the input source from the input terminal A, and the output image switch 2
31 selects the image data from the first image memory 213 and the blend ratio α is 100%.

Step S282: The CPU 241 sets the second
The input source of the input terminal B is selected. At this point, the blend ratio α
Is 100%, only the image data (“Input 1”) of the first image memory 213 is output. This corresponds to the states shown in FIGS. 17 and 21A.

Steps S283 and S284: C
The PU 241 ends the output of the image data in the vertical direction,
When recognizing that the image output for one frame has been completed (step S283), it is determined whether or not the blend ratio α is “0” (step S284).

Step S285: If the result of determination in step S284 is that the blend ratio α is not “0”, the CPU 2
Reference numeral 41 resets the value obtained by subtracting 1% from the blend ratio α to the blend ratio α, returns to step S283 again, and repeatedly executes the subsequent processing steps.

Steps S286 to S287: The processing steps of steps S283 to S285 are repeatedly executed, and if the blend ratio α becomes “0” as a result of the determination of step S284, the processing from step S286 is executed. You.

Here, when the blend ratio α is “0% <T <10
The period of 0% "corresponds to the states shown in FIGS. 17 and 21 (b) and (c). The states shown in FIGS. 17 and 21 (d) are as follows. This is the state of the blend ratio α = “0”.

Then, when the blend ratio α becomes “0”,
The CPU 241 causes the first source switch 211 to select the input source of the input terminal B (step S286). Further, the CPU 241 sets 100% to the blend ratio α (step S287). This processing ends in this step S287.

In the above processing, for example, when the V rate is set to 60 Hz, "1%" is subtracted from the blend ratio α in step S285, so that 100 frames, ie, about 1.67 seconds, are required to switch the entire screen. "Fade-in / fade-out" is performed.

By setting a value such as n / 128 with respect to the blend ratio α, a slow “fade-in / fade-out” of about 2 seconds can be realized. First, the first multiplication circuit 214
Is given to the second multiplication circuit 224 while the blend ratio n is “0”, and the second multiplication circuit 224 is given a fixed blend ratio = 0. The above configuration is such that the friend ratio = “0” is fixedly given to the first multiplying circuit 214 until the blend ratio for the circuit 224 reaches “100%” from “0”. A “blackout fade” as shown in FIG. 18 can be realized. Also, by configuring to mix fixed data according to the blend ratio α,
It is also possible to realize a "white out fade" as shown in FIG. 19, or an image switching pattern in which the entire surface is switched to a specific color.

<Configuration and Operation of Image Processing Apparatus 100 of the Present Embodiment> As shown in FIG. 1, the image processing apparatus 100 has a configuration for realizing the above-described plurality of image switching patterns (see FIG. 5 and FIG. 5). In addition to the configuration shown in FIG. 20), an output source changeover switch 233 is further provided. The output source changeover switch 233 selects one of the output (1) of the first multiplier 214, the output (2) of the second multiplier 224, and the output (α) of the adder 232. And outputs it as output image data. That is, the image processing apparatus 100 is configured to be capable of responding to any of “wipe switching”, “zoom switching”, and “fade switching” by the configurations shown in FIGS. 5 and 20 described above.

In the configuration shown in FIG. 1, the same reference numerals are given to portions functioning in the same manner as the configurations shown in FIGS. 5 and 20, and a detailed description thereof will be omitted.

The image processing apparatus 100 includes, for example, an operation section 300 provided with operation switches 301 to 304 as shown in FIG. An operation performed by the user on the operation unit 300 is detected by the CPU 241.

In the operation unit 300, the operation switch 30
Reference numeral 1 denotes a switch (Key-1) for instructing a hierarchy up, which will be described later, an operation switch 302, a switch (Key-2) for instructing the hierarchy down, and an operation switch 303. The switch (Key-3) is for instructing the switching of the hierarchy, and the operation switch 304 is a switch (Un-Do) for instructing the cancellation of the operation.

Here, the “hierarchy” will be described. In FIG. 1, for simplicity of description, the image processing apparatus 1
For 00, input sources are supplied from three input terminals A, B, and C. That is, the number of input sources (the number of source sources) to the image processing apparatus 100 is three. However, in actuality, as a source, there are terrestrial waves, BS or CS among broadcast waves, and there are also HDDs and DVDs as AV devices, and further, there are a personal computer (PC), a digital camera, and the like. These may be source sources for the image processing apparatus 100.

Therefore, the image processing apparatus 10 of the present embodiment
At 0, for example, as shown in FIG. 24, various source source selection methods are managed in a hierarchical structure, for example, in the memory 241a in the CPU 241.

As shown in FIG. 24, in the present embodiment, as an example, there are three layers of layers 0 to 2, and layer 2 of the highest layer includes “broadcast”, “AV equipment”, And "Information devices".

In layer 1 of the second layer, three source sources, “terrestrial tuner”, “BS tuner”, and “CS tuner” are set for the category of “broadcast”. For the category of “AV equipment”, four source sources “hard disk (HDD)”, “DVD”, “VTR1”, and “VTR2” are set,
For the category of “information equipment”, three source sources “PC”, “digital camera”, and “game console” are set.

In the layer 0 of the lowest hierarchy, for example, “channel (tuning)” and the like are set for a tuner (source source) in the category of “broadcasting”.
A “sector of recorded content” and the like are set for digital cameras of the category (for example, digital video cameras that can be accessed randomly).

FIG. 25 shows the operation of the image processing apparatus 100. For example, the CPU 241 executes the processing in FIG.
The image processing apparatus 100 operates as follows by reading out the processing program according to the flowchart of (1) from the program memory 241a and executing it.

Steps S402 to S404: C
The PU 241 detects a user operation on the operation unit 300 shown in FIG. As a result, the operation switch 301
If (Key-1) has been operated, step S405 is performed.
If the operation switch 302 (Key-2) has been operated, the process proceeds to step S406, and the operation switch 30
If No. 3 (Key-3) is operated, step S40
Proceed to 7.

Step S405: When the operation switch 301 (Key-1) of the operation unit 300 is operated, the CPU
241 increments a code value Layer for storing a hierarchy to be operated. Thereafter, the process returns to step S402, and the subsequent processing steps are repeatedly executed.

Step S406: When the operation switch 302 (Key-2) of the operation unit 300 is operated, the CPU
241 decrements the code value Layer. Thereafter, the process returns to step S402, and the subsequent processing steps are repeatedly executed.

Note that the code value Layer is from "0" to
A value of “3” is taken. In step S406, if the code value Layer = “3”, the increment process is not performed. If the code value Layer = “0” in step S407, the value is decremented. No processing is performed.

Steps S407 to S410: When the operation switch 303 (Key-3) of the operation section 300 is operated, the CPU 241 executes the corresponding processing according to the set value of the code value Layer. That is, if the code value Layer is "0", the process proceeds to step S4.
08 is performed. If the code value Layer is “1”, the process of step S409 is performed. If the code value Layer is “2”, the process of step S410 is performed. Hereinafter, each processing of steps S408 to S410 will be specifically described.

(1) When the Code Value Layer is "0" In this case, the source input is switched to the lowest hierarchy, and in step S408, a direct switching operation is performed. That is, the source input switching with respect to the lowest hierarchy is, for example, to select a channel if the currently selected source is a terrestrial tuner.
1 executes tuning control of a tuner (not shown). Also, for example, the current source is a hard disk,
If the image from the hard disk is being reproduced, the CPU 241 executes control to jump to reproduction from the beginning of the next program. In this way, the source input switching at the lowest hierarchy switches directly within the same source instantaneously.

(2) When the code value Layer is “1” In this case, the source input is switched to the intermediate layer,
In step S409, the image switching process based on the “wipe-in” image switching pattern described with reference to FIG. 2 and the like is executed. Here, the source input switching for the intermediate layer means that, for example, if the currently selected input source is an image from a terrestrial tuner, the image is changed to another tuner (here, a BS tuner) by “wipe-in”. ). Also, for example, if the currently selected input source is a playback image from a hard disk (HDD), the image is
Switching to a playback image from a DVD or the like. As described above, when the code value Layer is “1”, image switching to another input source within the same category is performed by “wipe-in”.

FIG. 26 specifically shows the process of step S409. This processing is basically the same as that of FIG.
23 is the same as the “wipe-in” process, but in this process, the switch 30 of the operation unit 300 shown in FIG.
4 (switch for instructing operation cancellation (Un-D
o)) is added.

In the following description, for simplicity,
The input source from the input terminal A is exiting image data (for example, image data from a terrestrial tuner), and the input source from the input terminal B is appearance image data (for example, BS
Image data from the tuner).

First, similarly to the processing in FIG.
Under the control from 241, the second source switch 221 selects the input source of the input terminal B (step S <b> 502). Next, the CPU 241 sets “1280” to the timing offset value T (step S503). Then, the CPU 241 controls the operation unit 300
It is determined whether or not the switch (cancel operation switch) 304 has been operated (step S504).

If the result of determination in step S 504 is that the cancel operation switch 304 has not been operated, the CPU 241
Correspond to steps S254 to S2 shown in FIG.
The processing in steps S505 to S509 similar to step S58 is executed.

On the other hand, if the result of determination in step S 504 is that the cancel operation switch 304 has been operated,
Executes the processing of steps S511 to S514. In the present processing, regarding the setting of the value to the timing offset value T, steps S505 to S509
, The timing offset value T every 1V
Is increased by “10” to “1280” (step S513). When the timing offset value T reaches “1280” (step S512), the second source switch 221 is caused to select the input source of the input terminal A (step S514).
The image switching process by “wipe-in” is canceled.
As a result, for example, as shown in FIG. 2, when the cancel operation switch 304 is operated while the input source is being switched by “wipe-in” from the right side of the screen, the movement of the appearing image is stopped halfway. The player exits by "wipe out" toward the right opposite to the direction in which the input source has moved, and is returned to the state before the start of the input source switching operation.

(3) In the case where the code value Layer is “2” In this case, the source input is switched to the uppermost layer. In step S410, the “fade-in / fade-out” described with reference to FIG. An image switching process based on the image switching pattern is executed. Here, the source input switching for the uppermost layer means that, for example, if the currently selected input source is an image from the “broadcast” category of tuners, the image is converted to a DVD or the like by “fade-in”. Switching to an image from the category of “AV equipment”.

FIG. 27 specifically shows the process of step S410. This processing is basically the same as that shown in FIG.
23 is the same as the “fade-in / fade-out” process shown in FIG. 2, but in this process, the switch 304 (switch (Un-Do) for instructing to cancel the operation) of the operation unit 300 shown in FIG. Related processing is added.

In the following description, for simplicity,
An input source from the input terminal A is exit image data (for example, image data from the category of “broadcast”), and an input source from the input terminal B is appearance image data (for example,
Image data from the category of “AV equipment”.

First, similarly to the processing in FIG.
Under the control of U241, the second source changeover switch 221 selects the input source of the input terminal B (step S602). Further, under the control of the CPU 241, the output source changeover switch 233 selects the output (α) of the adder 232 (step S603). Next, C
The PU 241 determines whether the switch (cancel operation switch) 304 of the operation unit 300 has been operated (step S604).

If the result of determination in step S 604 is that the cancel operation switch 304 has not been operated, the CPU 241
Corresponds to steps S283 to S shown in FIG.
The processing of steps S605 to S610 similar to 287 is executed.

On the other hand, if the result of determination in step S 604 is that the cancel operation switch 304 has been operated,
Performs the processing of steps S611 to S614. In the present process, regarding the setting of the value to the blend ratio α, the blend ratio α is increased by “1%” by “1%” by “1%” every “1%”, contrary to the process of steps S605 to S610.
% ”(Step S613), and when the blend ratio α reaches“ 100% ”(step S613).
612) By causing the second source source switch 221 to select the input source of the input terminal A (step S614), the image switching process by “fade-in / fade-out” is canceled. As a result, for example, as shown in FIG. 17, when the cancel operation switch 304 is operated during the input operation switching operation with “fade-in”, the “fade-in” operation of the appearing image is stopped halfway. In contrast to the operation up to that point, the player leaves with "fade out" and returns to the state before the start of the input source switching operation.

(Second Embodiment) The present invention provides, for example,
This is applied to an image processing device 700 as shown in FIG.
The image processing apparatus 700 of the present embodiment is different from the image processing apparatus 100 of FIG. 1 in that the resolution converter has only one system of the resolution converter 212.

In the image processing apparatus 700 shown in FIG. 28, parts that function similarly to the image processing apparatus 100 shown in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the image processing apparatus 700, the exit image is stored in the second image memory 223 at the start of the image switching process.
, And immediately after that, the resolution conversion process of the appearing image is executed. That is, in the present embodiment, the leaving image is displayed as a still image, and only the appearing image is displayed as a moving image.

In this case, the continuous resolution conversion processing for the exit image at the time of “zoom switching” is performed by the resolution converter 21.
2 cannot be processed.

When reading out the still images stored in the second image memory 223, the readout address is appropriately skipped according to the reduction ratio Z, thereby performing the reduced resolution conversion.

(Third Embodiment) The present invention provides, for example,
This is applied to an image processing device 800 as shown in FIG.
The image processing apparatus 800 of the present embodiment is different from the image processing apparatus 100 of FIG.
The configuration includes only one image memory 213 instead of 3, 223.

In the image processing apparatus 800 shown in FIG. 29, parts that function similarly to the image processing apparatus 100 shown in FIG. 1 are denoted by the same reference numerals, and a detailed description thereof will be omitted.

In the image processing apparatus 800, the first source switch 211 and the second source switch 2
21 and the two sets of image data (image data of the exit image and the appearance image) obtained by the configuration of the first resolution converter 212 and the second resolution converter 222 are individually stored in the image memory 213. In this memory space, a combined process of the exit image and the appearing image is executed in this memory space, and an image switching process by "wipe switching" or "zoom switching" is executed.

Further, the first resolution converter 212 and the second
The first multiplication circuit 214 and the second multiplication circuit 224 and the adder 232 perform multiplexing synthesis processing on each output of the resolution converter 222, thereby performing image switching processing by “fade switching”. Execute

Then, at the output source changeover switch 233, the image data from the image memory 213 (image data after the image switching process by “wipe switching” or “zoom switching”) and the image data from the adder 232 (“fade” (Image data after the image switching process by “switching”).

In the first embodiment, FIG.
Although the hierarchical structure shown in FIG. 4 is used, the present invention is not limited to this. For example, a hierarchical structure having two levels or a hierarchical structure having four or more levels may be used. More specifically, for example, two terrestrial tuners, two BS tuners, or the like may be mounted, and one layer may be added for switching images between the two tuners.

In the first embodiment, as an example, image switching by “wipe-in”, “fade-in / fade-out”, or direct switching is executed according to the value of the code value Layer. However, the present invention is not limited to this, and an image switching pattern that implements various image switching display effects as described above, and other display effects in which images are gradually switched over a predetermined time that can be perceived by humans. Image switching pattern (a pattern that changes the input image vertically and horizontally individually, a pattern that changes the display position of the input image, a pattern that changes the display range of the input image, a pattern that changes the trimming amount around the input image, A pattern that changes the image quality (brightness, contrast, chromaticity, etc.) of the image and a pattern that is multiplexed by changing the mixture ratio of two input images ) From such, it may be used an image switching pattern, optionally in combination.

Also, in the first to third embodiments,
For example, if the input source is an analog video signal, the first
Multiplexor for digital video data in which an A / D converter is arranged in the preceding stage, or an analog switch for an analog video signal in which an A / D converter is arranged in the subsequent stage as the source source switch 211 and the second source switch 221 of FIG. May be used.

In the first to third embodiments,
The output of the output source changeover switch 233 may be, for example, digital data itself or data obtained by performing a mixing process on an analog signal obtained by providing a D / A converter in a stage preceding the adder 232. Is also good.

In the first to third embodiments,
The operation unit 300 shown in FIG. 23 is not limited to the configuration shown in FIG. That is, the arrangement and types of the operation switches are not limited to the configuration shown in FIG.
It is also possible to provide a single operation switch that doubles as 2, and use the operation switch to cause the hierarchy to toggle in only one direction. Alternatively, as the operation switch 303, 2
A switch for the direction may be provided, and these switches may be used to change the direction of the wipe. Also, the operation unit 300 may be provided on the apparatus main body, or on another housing connected systematically, or from a remote position such as a remote controller (remote controller) using infrared rays. It may be provided on the upper part or the like.

An object of the present invention is to supply a storage medium storing program codes of software for realizing the functions of the host and the terminal according to the first to third embodiments to a system or an apparatus, and to provide the system or apparatus with the storage medium. By reading and executing the program code stored in the storage medium by the computer (or CPU or MPU) of the device,
Needless to say, this is achieved. In this case, the program code itself read from the storage medium realizes the functions of the first to third embodiments, and the storage medium storing the program code constitutes the present invention. As storage media for supplying the program code, ROM, floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, CD-RO
M, CD-R, magnetic tape, nonvolatile memory card, and the like can be used. In addition, the first to third programs are executed by executing the program code read by the computer.
Not only the functions of the embodiment are realized, but also the OS or the like running on the computer performs part or all of the actual processing based on the instruction of the program code, and the processing performs the first to the first processing. It goes without saying that a case where the functions of the third embodiment are realized is also included. Further, after the program code read from the storage medium is written to a memory provided in an extension function board inserted into the computer or a function extension unit connected to the computer, the function extension is performed based on the instruction of the program code. The CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing, and the processing causes
It goes without saying that a case where the function of the third embodiment is realized is also included.

[0139]

As described above, in the present invention, first,
Treat multiple source sources in a hierarchical structure. For example, “broadcasting”, “information equipment”, and the like are set as the top level hierarchy, “terrestrial tuners” and “BS tuners” in the “broadcasting” category are set as intermediate levels, and the “information equipment” category is Similarly, the “digital camera” and the “personal computer” are also set to the middle layer, and the channels 1, 2,... In the “broadcast-BS tuner” are set to the lowest layer. And
When switching a first image (exit image) from a first source currently being rendered (displayed) to a second image (appearance image) from a second source, the first source Hierarchy and
A corresponding image switching pattern among the plurality of image switching patterns is set based on the relationship with the hierarchy of the second source source, and the image from the first image to the second image is set according to the set image switching pattern. Perform a switch. With such a configuration, for example, an image from the terrestrial tuner is currently displayed, and when the image is switched to an image from the BS tuner, an image from the terrestrial tuner is currently displayed, and this is displayed on a digital camera. The image switching pattern can be changed when switching from the image to the image. That is, since the image display can be performed by changing the image switching pattern depending on whether the source source is switched in a different hierarchy or the source source in the same hierarchy is switched, the user switches the image in a different hierarchy. Or
Alternatively, it is possible to easily recognize whether or not the image is switched within the same hierarchy.

In a case where the image switching operation is canceled in accordance with the cancellation instruction from the user and the original state (the state before the image switching operation is started) is configured, the user may instruct the image switching by an erroneous operation. However, this can be easily invalidated.

Therefore, according to the present invention, the digital BS
Sources of images to be displayed even in the case of the Toyomiya source environment due to multi-channel broadcasting such as the start of broadcasting and digital terrestrial broadcasting and the spread of various AV equipment expected in the future This makes it possible to avoid complication of the operation for switching, selection, and the like, and the user can easily and efficiently switch the desired image.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an image processing apparatus to which the present invention is applied in a first embodiment.

FIG. 2 is a diagram for explaining a display effect of “wipe-in” of “wipe switching” of an image conversion pattern in the image processing apparatus.

FIG. 3 is a diagram illustrating a display effect of “wipe out” of “wipe switching” of an image conversion pattern in the image processing apparatus.

FIG. 4 is a diagram for explaining a display effect by “wipe swap” of “wipe switching” of an image conversion pattern in the image processing apparatus.

FIG. 5 is a block diagram illustrating a configuration for performing the “wipe switching”.

FIG. 6 is a diagram for explaining the timing of image switching by the “wipe switching”.

FIG. 7 is a flowchart illustrating a process for “wipe switching”.

FIG. 8 is a diagram for explaining a display effect by “zoom-in” of “zoom switching” of the image conversion pattern in the image processing apparatus.

FIG. 9 is a diagram for explaining a display effect by “zoom out” of “zoom switching” of the image conversion pattern in the image processing apparatus.

FIG. 10 is a diagram for explaining a display effect by “slim-in” of “zoom switching” of the image conversion pattern in the image processing apparatus.

FIG. 11 is a diagram for explaining a display effect of “slim out” of “zoom switching” of the image conversion pattern in the image processing apparatus.

FIG. 12 is a diagram for explaining a display effect of “enlarge in” of “zoom switching” of the image conversion pattern in the image processing apparatus.

FIG. 13 is a diagram for describing a display effect by “narrow out” of “zoom switching” of the image conversion pattern in the image processing apparatus.

FIG. 14 is a diagram for explaining timing of image switching by the “zoom switching”.

FIG. 15 is a diagram for explaining details of the timing of image switching by the “zoom switching”.

FIG. 16 is a flowchart illustrating a process for “zoom switching”.

FIG. 17 is a diagram for explaining a display effect by “fade-in / fade-out” of “fade switching” of the image conversion pattern in the image processing apparatus.

FIG. 18 is a diagram for explaining a display effect by “black fade” of “fade switching” of the image conversion pattern in the image processing apparatus.

FIG. 19 is a diagram for explaining a display effect by “white fade” of “fade switching” of the image conversion pattern in the image processing apparatus.

FIG. 20 is a block diagram illustrating a configuration for performing the “fade switching”.

FIG. 21 is a diagram for explaining the timing of image switching by the “fade switching”.

FIG. 22 is a flowchart illustrating a process for “fade switching”.

FIG. 23 is a diagram illustrating an operation unit of the image processing apparatus.

FIG. 24 is a diagram for explaining an input source hierarchical configuration in the image processing apparatus.

FIG. 25 is a flowchart illustrating the operation of the image processing apparatus.

FIG. 26 is a flowchart illustrating a process of a subroutine (step S409) in the operation of the image processing apparatus.

FIG. 27 is a flowchart illustrating a process of a subroutine (step S410) in the operation of the image processing apparatus.

FIG. 28 is a block diagram illustrating a configuration of an image processing apparatus to which the present invention has been applied in the second embodiment.

FIG. 29 is a block diagram illustrating a configuration of an image processing apparatus to which the present invention has been applied in the third embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 image processing device 211 first source changeover switch 212 first resolution converter 213 first image memory 214 first multiplier 221 second source changeover switch 222 second resolution converter 223 second Image memory 224 Second multiplying circuit 232 Adder 233 Output source switch 241 CPU 241a Memory 242 Synchronous signal source A, B, C Input terminal

Claims (15)

[Claims] 1. An image processing apparatus capable of drawing an image by switching a first image supplied from a first source to a second image supplied from a second source, comprising: A plurality of source sources including the first source source and the second source source are handled in a hierarchical structure, and a plurality of source sources are determined based on the relationship between the first source source hierarchy and the second source source hierarchy. An image processing apparatus comprising: an image switching unit that performs image switching based on an arbitrary image switching pattern among the image switching patterns. 2. An operation means for designating at least a hierarchy of the second source source with respect to a hierarchy of the first source source, wherein the image switching means is configured to execute the arbitrary operation based on the designation by the operation means. The image processing apparatus according to claim 1, wherein the first image is switched to the second image according to an image switching pattern. 3. The image switching means, wherein when the hierarchy of the first source source and the hierarchy of the second source source are different, the image switching unit gradually switches the image over a time that can be sufficiently perceived by a human. The image switching is performed by a pattern, and when the hierarchy of the first source source and the hierarchy of the second source source are the same, the image switching is performed by an image switching pattern that switches images instantaneously. Item 2. The image processing apparatus according to Item 1. 4. The image switching means, when a cancel instruction is given by the operation means, suspends switching from the first image to the second image and returns to a drawing state of the first image. 3. The image processing apparatus according to claim 2, wherein: 5. The image switching means comprises means for drawing an input image vertically and horizontally by changing the enlargement / reduction ratio; means for drawing the input image by changing the display position; and drawing by changing the display range of the input image. At least one of: a unit that draws the periphery of an input image by changing the amount of trimming; a unit that draws by changing the image quality of the input image; and a unit that draws multiple images by changing the mixture ratio of two input images 2. The image processing apparatus according to claim 1, further comprising: 6. The image processing apparatus according to claim 1, wherein each of the plurality of image switching patterns includes a pattern having a different perceptual effect. 7. An image processing system in which a plurality of devices are communicably connected to each other, wherein at least one of the plurality of devices is the image processing device according to claim 1. An image processing system having the following functions. 8. An image display method for switching and displaying a first image supplied from a first source source to a second image supplied from a second source source, the method comprising: A management step of managing a plurality of source sources including a first source source and the second source source in a hierarchical structure; and a relationship between the first source source hierarchy and the second source source hierarchy. An image switching step of executing image switching from the first image to the second image by an arbitrary image switching pattern of the plurality of image switching patterns. 9. The image switching step according to claim 1, wherein the image switching step is performed based on an operation performed by a user to designate a hierarchy of the second source source with respect to the hierarchy of the first source source. Is set, and the first image is set according to the set image switching pattern.
9. The image display method according to claim 8, further comprising the step of performing image switching from the image of (1) to the second image. 10. The image switching step, wherein when the hierarchy of the first source source and the hierarchy of the second source source are different, the image is gradually switched over a predetermined time that can be sufficiently perceived by a human. By image switching pattern
Performing an image switch from the first image to the second image; if the hierarchy of the first source source and the hierarchy of the second source source are the same hierarchy, human beings cannot perceive 9. An image display according to claim 8, further comprising the step of executing image switching from said first image to said second image by an image switching pattern for instantly switching images within a predetermined time. Method. 11. An image switching pattern in which an image is gradually switched over a predetermined period of time that can be sufficiently perceived by a human is such that the second image gradually appears on the first image from left or right or up and down. A pattern to be erased, a pattern for gradually enlarging the second image on the first image, and a pattern for erasing by gradually reducing the first image and gradually expanding the second image. The image display method according to claim 10, wherein the image display method includes at least one of patterns to appear. 12. The image switching step includes a step of automatically returning to a state of the first image when an operation for instructing cancellation of the image switching is performed by a user. The image display method according to claim 8. 13. The image switching step, wherein when the user performs an operation for instructing cancellation of the image switching, the image switching operation is interrupted, and the image switching operation is performed by an image switching operation reverse to the image switching operation. 9. The image display method according to claim 8, further comprising a step of automatically returning to a state before the start of the image switching operation. 14. A computer-readable storage medium storing a program for causing a computer to implement the functions of the image processing apparatus according to claim 1 or the functions of the image processing system according to claim 7. . 15. A computer-readable storage medium storing a program for causing a computer to execute the processing steps of the image display method according to claim 8.