摘要:
There is disclosed an image forming apparatus for obtaining an image from a television image with 625 horizontal scanning lines with a circuitry substantially same as that for obtaining an image from a television image with 525 horizontal scanning lines. In this apparatus the samples from six scanning lines are converted to form five scanning lines by means of sampling circuit and converting circuit.
摘要:
In a method and apparatus for forming a high quality color picture, a color space is divided into several areas and the color correction processing is performed using a different color-correction function for every area. The disclosed method and apparatus are particularly adapted to eliminate false lines ("pseudo boundaries") in pictures formed using colorants having different concentrations or densities. The false lines or "pseudo boundaries" occur at points where a colorant of one concentration is replaced by a colorant of a different concentration, and are eliminated by switching between two color correction processing means corresponding to the two colorants of different concentrations in a mutually exclusive random or alternating manner.
摘要:
For reproducing a picture with a density gradient through printing, an overlapped region is provided in a high density dot reproduction range and a low density dot reproduction range. The switch-over between the high density dot at the overlapped region is conducted where the picture density sharply changes. This reduces the unfavorable perception of quality differences in a printed picture resulting from the switch-over between the high and low density dots.
摘要:
An image forming method comprises the steps of providing pattern elementary marks which provide an image pattern, controlling the size of the pattern elementary marks, and forming the pattern elementary marks substantially at equal intervals. The controlling step is such that use is made preferentially of the pattern elementary marks in an area wherein the variation in density gradient level relative to the variation in size of the pattern elementary marks is great. An apparatus for carrying out such method is provided.
摘要:
A picture producing apparatus forms a picture comprising a plurality of picture elements with different light-reflecting properties providing different optical reflection densities using a plurality of dot forming units to provide dots of recording materials of different concentrations. The optical reflection density range of an entire original picture to be reproduced is determined and selecting circuitry responsive to that determination selects at least one of the dot forming units to form picture elements reproducing the original picture. The dot forming units vary the areas of the picture elements formed by the dots so as to represent in the reproduced picture the optical reflection density range of the original.
摘要:
A picture-forming method comprises the steps of providing picture forming elementary particles having different optical densities; controlling the areas occupied by the respective picture forming elementary particles; and representing gradient by said different picture forming elementary particles while limiting the percentage of the gradient level area represented by the highest density elementary particle to said picture forming elementary particles to under 70% of the total area repsesented by said respective different picture forming elementary particles, thereby giving a picture which does not feel "rough". Apparatus is also disclosed for performing the method.
摘要:
Method and apparatus for forming a pattern in which an array duty factor of elementary pattern marks which are elements for forming a picture is no less than 0.5.
摘要:
Disclosed is a plastic cap useful for steadfastly maintaining a sealed state created in a container having a mouth with an opening by sealing the opening with a sealing member. The cap has a cap main body and a cover portion integrated with the main body via at least one bridge portion. The main body has a base portion and a top wall. The bridge portion is formed of a synthetic plastic filled in at least one fusion-bonding hole having a diameter of from 0.3 to 3 mm and arranged extending through at least one, preferably one of the main body or cover portion such that the main body and cover portion are integrally fusion-bonded by the bridge portion and the cover portion can be separated from the main body by breaking the bridge portion with hands. A production method of the plastic cap is also disclosed.
摘要:
An object of the present invention is to provide a small-sized microwave surgical instrument that improves the convenience of surgical work. The microwave surgical instrument 1 of the present invention includes a surgical instrument main body 21 having an electrode section 24 for emitting a microwave to a biological tissue; a microwave oscillator 51, internally provided in the surgical instrument main body 21, for oscillating a microwave; and an amplifier 52, internally provided in the surgical instrument main body 21 by being connected between the electrode section 24 and the microwave oscillator 51, for amplifying a microwave from the microwave oscillator 51 and transmitting the microwave to the electrode section 24.