JPH01135278A - Device for dubbing video floppy - Google Patents

Abstract

PURPOSE:To allow a screen to be easy to watch even on a television screen and, simultaneously, to eliminate consideration at the time of reproducing when a camera photographing is executed by matching a lengthwise screen with an oblong television size at the time of dubbing the contents of a video floppy. CONSTITUTION:An image recorded onto a video floppy 1 is reproduced by a reproducing head 2, an obtained reproducing signal is processed through a reproducing amplifier 3 by a reproducing signal processing circuit 4, made into a digital signal by an A/D converter 5, resolved for the image, and stored into a memory 6. Next, it is read, rend by being controlled by a control circuit 7, made into an analog signal by a D/A converter 8, and recorded through a recording amplifier 10 onto a video floppy 12 by a recording head 11. Since, however, a bank is generated in a horizontal direction and picture elements cannot be entirely accommodated in a vertical direction in such a condition, first, central parts are aligned, thereafter, respective picture elements are processed so as to allow vertical direction components to be even with a new screen size, they are reduced to, for example, 3/4, and the blank in the horizontal direction is filled with a blue back.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a video floppy dubbing device that uses a video floppy for recording television images and has a function of dubbing the recorded contents.

(Prior art) Video floppies are used in electronic still cameras.
The objective is to provide a convenient still camera system that does not require development or printing in place of conventional still camera systems that use silver halide film. An electronic still camera uses an imaging device such as a CCD to convert images of people, scenery, etc. into electrical signals and records them on a video floppy.

This signal is then played back and displayed on a television. Since it is originally an electrical signal, it has the advantage of being easily transferable and dubbing. Also, if you use a printer, it can be printed on paper like a photograph. It is also possible to form images.

(Problem to be solved by the invention) However, since it is based on a TV signal, the aspect ratio is set at 3:4, so if you shoot vertically like with a conventional camera, it will not print out. However, on a TV screen, the vertical and horizontal directions are reversed. For this reason, the image becomes extremely difficult to view, which is a serious drawback of electronic still cameras.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems, and includes a reproduction means for reproducing images recorded on a video floppy;
The image reproduced by the reproduction means is divided into predetermined pixels, and the image memory stores each pixel. The present invention is a video floppy dubbing device comprising a reading means for reading out the image in a different manner, and a recording means for recording the image read by the reading means again on the same or another video floppy.

(Function) The video floppy dubbing device of the present invention has a double configuration, thereby forming a new image by reversing the vertical and horizontal relationship of the original image, and recording this newly created image. do. Therefore, when using this video floppy in the future, even images taken with the camera in a vertical position can be viewed in their normal state on the television screen.

(Embodiment) A video floppy dubbing apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing the configuration of a video floppy dubbing apparatus according to an embodiment of the present invention. Images are recorded on a video floppy 1 and are played back by a playback head 2. This reproduction signal passes through a reproduction amplifier 3, is processed by a reproduction signal processing circuit 4, is converted into a digital signal by an A/D converter 5, is decomposed into each pixel, and is stored in a memory 6.

For example, this pixel is capable of transmitting an analog playback television signal in vertical 48 pixels.
The image is divided into approximately 640 pixels horizontally at 0°, and each is replaced with an 8-bit digital signal.

Then, the signal in the memory 6 is read out while being controlled by the readout control circuit 7, converted into an analog signal by the D/A converter 8, and converted into an analog signal by the recording signal processing circuit 9. Recording amplifier 1
Video floppy 1 by Rad 11 recorded through 0
This is recorded in 2.

The operation at the time of reading will be explained using FIG.

As shown in Figure (A), the television signal is decomposed into 307,200 pixels from pixel (1, 1) to pixel (480, 640) and stored in the memory 6. When reading out this image, by reading out the image as shown in Figure (B), the vertical and horizontal directions of the original image can be swapped.

Of course, the reverse is also possible, but by recording this signal, a vertically and horizontally converted image is recorded on a new video floppy 12. However, as is clear from figure (B), regarding the horizontal component, (1,
1) to (1,640), at a location corresponding to 640 pixels,
(B) In the figure, 4 is (1, 640) - (480, 640)
Since there are only 80 pixels, 160 pixels become blank. In addition, in the vertical direction, conversely, in figure (A), it can only be stored at (1,1) to (480,1), and in figure (B), only (1,640) to (1,161) can be stored. , (1, 160)) to (1, 1), 160 pixels are left over. That is, simply changing the readout direction as shown in FIG. 2 results in an image as shown in FIG. 3. This means that 160×480=76.800 pixels will be left over or blank, resulting in an unsightly appearance.

Therefore, in order to correct this problem, several measures are considered, and three representative examples are shown below.

In the first example, as shown in FIG. 4, the readout control circuit 7 is configured to align the center, trim the top and bottom of vertical components with many pixels, and synthesize blue packs etc. in horizontal blank areas. It has a compositing function. The pixels are (1, 560) ~ (480° 560), and (
1,81) ~ (480,81) 480 x 480
= 230. Using 400 pixels, the screen becomes a square.

In the second example, after aligning the centers as shown in Figure 5, each pixel is processed and enlarged by 4/3 so that the horizontal component is aligned with the new screen size, and the vertical component is adjusted accordingly. It has been cropped a lot.

In this case, there is no blank space, so Blue Pack is no longer necessary, but the screen will be a little rougher. The pixels used are (1, 5
00)~(480,500) and (1,141)~
(480,], 41), 480X360=]72
, 800 pixels.

In the third example, after aligning the centers as shown in FIG. 6, each pixel is processed so that the vertical components are aligned with the new screen size, and the pixels are reduced to 3/4 times. In this case, all pixels will be used, but the blue packs on both sides will become larger, making the image smaller overall.

Note that a method of processing pixels accompanying enlargement/reduction will not be particularly described here.

In addition, in Fig. 1, the video floppy for playback and the video floppy for recording are different from each other, but it is of course possible to record on another rack on the same floppy, or the played track can be recorded on another rack. It is also possible to newly record the data after erasing it.

(Effects of the Invention) As is clear from the above description, according to the video floppy dubbing apparatus according to the present invention, it is possible to make the vertically long screen match the horizontally long television size and to make it easy to see on the television screen. By providing this as a dubbing device, there is no need to increase the cost or volume of memory, peripheral circuits, etc. and place a burden on electronic still cameras and playback decks.

Furthermore, when shooting with a camera, you can freely choose the composition without considering playback, which expands the uses of the camera and dramatically improves its usability, which is extremely valuable.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a video floppy dubbing device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of the reading operation of the same device, FIG. 3 is an explanatory diagram of the state during the same operation, and FIGS. FIG. 6 is an explanatory diagram when the same operation is improved. 1.12... Video floppy, 2... Playback head, 6... Memory, 7... Readout control circuit, 11... Recording head. Patent applicant Matsushita Electric Industrial Co., Ltd. (1,6to) (480,640) Figure 5 Figure 6

Claims (5)

[Claims] (1) a reproduction means for reproducing images recorded on a video floppy; an image memory for decomposing the image reproduced by the reproduction means into predetermined pixels and storing each pixel;
A reading means reads out the contents of the image memory by changing the order of each pixel so that the horizontal and vertical directions of the original image are reversed, and the image read out by this reading means is read out again from the same or another video floppy disk. A video floppy dubbing device comprising: a recording means for recording on a video floppy; (2) A video floppy dubbing apparatus according to claim (1), wherein the vertical component of the image read from the image memory is trimmed to match the television size and sent to the recording means. . (3) Enlarging the horizontal component of the image read from the image memory to match the TV size, and enlarging the vertical component at the same rate, then trimming it to match the TV size and sending it to the recording means. A video floppy dubbing device according to claim (1), characterized in that: (4) The vertical component of the image read from the image memory is reduced to match the television size, and the horizontal component is also reduced at the same rate before being sent to the recording means. ) The video floppy dubbing device described in item 2. (5) Claims (2) or (4), characterized in that the invention is characterized by comprising a composition means for composition of another image on a portion of the image sent to the recording means that is smaller than the television size. Video floppy dubbing device described.