초록 ▼

There are provided an image processing apparatus, an image processing method, and a computer readable memory medium storing a program for such image processing method, which are featured by inputting image data, discriminating the motion of the image data, and superposing watermark information with

There are provided an image processing apparatus, an image processing method, and a computer readable memory medium storing a program for such image processing method, which are featured by inputting image data, discriminating the motion of the image data, and superposing watermark information with the image data or the predetermined information data such as a motion vector employed in the encoding of the image data, according to the result of discrimination, thereby enabling concealing of the watermark information with the increased resistance against the attacking and with the reduced deterioration of the image.

대표청구항 ▼

There are provided an image processing apparatus, an image processing method, and a computer readable memory medium storing a program for such image processing method, which are featured by inputting image data, discriminating the motion of the image data, and superposing watermark information with

There are provided an image processing apparatus, an image processing method, and a computer readable memory medium storing a program for such image processing method, which are featured by inputting image data, discriminating the motion of the image data, and superposing watermark information with the image data or the predetermined information data such as a motion vector employed in the encoding of the image data, according to the result of discrimination, thereby enabling concealing of the watermark information with the increased resistance against the attacking and with the reduced deterioration of the image. inding being coiled about said pole piece at a location spaced from said magnetic gap. 6. The loudspeaker of claim 5 in which said field winding is mounted to said pot wall at a location spaced from said magnetic gap. 7. The loudspeaker of claim 1 in which said controller includes an adjustable voltage regulator connected between said voltage source and said field winding. 8. The loudspeaker of claim 1 in which said controller includes a switch, at least one first line having a resistance device and a second line with no resistor device which is arranged in parallel to said first line, said first and second lines being connected in series between said voltage source and said field winding, said switch being movable between a first position in which a completed circuit is formed between said voltage source, said first line and said field winding, and, a second position in which a completed circuit is formed between said voltage source, said second line and said field winding. 9. The loudspeaker of claim 1 in which said controller includes a switch, a first line having a resistor R, and a second line having a resistor R2 arranged as parallel to said first line, said first and second lines being connected in series between said voltage source and said field winding, said switch being movable between a first position in which a completed circuit is formed between said voltage source, said first line and said field winding, and, a second position in which a completed circuit is formed between said voltage source, said second line and said field winding. 10. The loudspeaker of claim 1 in which said magnetic flux control system further includes a polarity reversal switch which is effective to change the polarity of the electrical current supplied to the field winding. 11. A loudspeaker, comprising: a motor structure including a back plate, a top plate, a magnetic gap and a permanent magnet interposed between said back plate and top plate which creates magnetic flux within said magnetic gap; a frame having a first end connected to an upper suspension and a second end connected to said motor structure; a voice coil movable within said magnetic gap, said voice coil being connected to a diaphragm which extends between said voice coil and said upper suspension, said voice coil having an outer surface wrapped with a wire winding which is adapted to connect to a source of electrical energy, said voice coil producing a magnetic flux when energized with electrical energy which alternately opposes and reinforces said magnetic flux created by said permanent magnet within said magnetic gap; a magnetic flux control system adapted to connect to said source of electrical energy and including a field winding and a controller, said controller being manually adjustable to a desired setting to vary the level and polarity of electrical current supplied to said field winding so as to vary the magnetic flux produced by said field winding, said field winding being located within said motor structure in position such that said magnetic flux produced by said filed winding is effective to either reinforce or to oppose the magnetic flux created by said permanent magnet within said magnetic gap. 12. A loudspeaker, comprising: a motor structure including a back plate, a top plate, a permanent magnet connected between said back plate and said top plate, and, a pole piece concentrically disposed within said top plate forming a magnetic gap therebetween within which magnetic flux is created by said permanent magnet; a frame having a first end connected to an upper suspension and a second end connected to said motor structure; a voice coil movable within said magnetic gap, said voice coil being connected to a diaphragm which extends between said voice coil and said upper suspension, said voice coil having an outer surface wrapped with a wire winding which is adapted to connect to a source of electrical energy, said voice coil producing a magnetic flux w