TW587388B - The image bit output device and its method of the scanner - Google Patents

Abstract

An image bit output device and its method of the scanner, the image bit output device comprises: the analogy/digital transformer, the digital signal processor and the bit selector. Inside the output device, the digital image data which outputted from the analogy/digital transformer after shading curve by the digital signal processor, it contains overflow bit, and then to select the bit range of the digital image. Another, the image bit output method of the scanner, the scanner user can decide to output the original digital image data or the overflow's digital image data, and to provide the better and the correct original image data to the next digital signal processor.

Description

587388

Furthermore, the present invention relates to an image bit output device disk, and more particularly, to an image bit output device method in a scanner. FIG. 1 illustrates an image bit output device in a conventional scanner. The H digits include clock μ analog / digital converter 1 0, digital signal processing 2 V = converter 10 converts analog image data into digital image frame. The digital signal processor 丨 2 is coupled to the analog / 10, and outputs the received digital image data after compensation. 、 History f analog / digital converter 丨 〇 After receiving the scanned file, it is transmitted as image data, which means that the analog image data is converted into digital image U j: The signal processor 12 supplements the digital image data: After the compensation is made Digital image data. Be ... stupid farewell. Among them, the digital image data output by the digital signal processor 12 is 16 bits. In the conventional image bit output method, if the reference white

That is, the data above the reference white 6 5 3 000 'is output after being compensated by the digital signal office A, and is output as 6 5 5 35, so the output digital image after compensation ^ contains overflow bit data', so even with 16-bit digital The image data still cannot contain the information of the overflow bit in the bright part, which is beneficial; the secret ^ ^ ^ device does the best compensation. The signal processing of the U segment is based on the above. The disadvantages of the image bit rotation device and method in the conventional scanner are: (1) In the digital image data of the conventional image bit output, the overflow bit 'causes even 16 Bit output 'still unable to wrap' bit information.

587388

Since the digital image data output by the correction image bit does not contain π ', it cannot provide the post-signal processor for the best compensation. In the method and method of image bit output in the m scanner, the influence of digital image data on original data after compensation is eliminated. Depending on the m-type image bit output device and method, the user cannot tie it. The present invention proposes an image bit output device in a scanner, which stands for a processor, so that the digital image data after compensation contains the overflow m. The bit 7L selector selects the output bit range and outputs it. 1) The present invention also proposes an image bit output side in the scanner. The scanner user depends on the output of the original digital image data or the 22: f bit digital image data to provide post-signal processing. The device text is better for the original image data. Like # 为 = ΐ Ϊ and other purposes, the present invention proposes a scanner digital: two ΐ Ϊ, the output device includes: analog / digital converter, receiver, bit selector. The above analog / digital converter is connected: the digital image data is 16 bits. The above-mentioned digital signal processor is coupled to a% i A-bit u converter and outputs N-bit A &# 1 data after compensating the digital image data. The digital image contains overflow bits. It is connected to a digital signal processor, and after selecting the bit range of the ^^ bit number two-bit shell material output, it outputs the selected digital image information, and the selected digital image data is N-bit digital video. With 16 bits of π, and the selected digital image data is b b5 in b material,

587388

Case No. 5. Description of the invention (3) and b j represents the j-th bit of the N-bit digital image negative. Among them, the post-digital image data is selected as M consecutive bits of N-bit digital images, and the post-digital image data is selected as the bj ~ bj-M-1 bits in the n-bit data & And bj represents the j-th bit in the N-bit image data. ~ In order to achieve the above and other objectives, the present invention further proposes a scanner image bit output method. The output method is to convert analog image data into

The digital image data is output, and after the digital image data is compensated, N-bit digital image data is output. After selecting the bit range of the N-bit digital image data output ', the selected digital image data with M bits is output. The selected digital image data is bj ~ bj-M-1 bits in the N-bit digital image data, and bj represents the j-th bit in the N-bit digital image data. β ί 中 ’digital image data is 16 bits, and N-bit digital image data has 3 overflow bits, and the selected digital image data is N-bit digital images-continuous M bits in shell material. Idle the output method of the image bit in the f scanner, the scanner can make% silly times = output the original digital image data or digital data containing overflow bits ^; bucket to provide a better signal processor A more correct original image makes it easier to make the above, and other features, features, and advantages of $ 2 more detailed. A preferred embodiment is given below, and in conjunction with the attached drawings, a detailed description of the drawings is provided. :

9661twfl.ptc Page 8 587388 Description of the invention (4) 1 0, 20: Analog / digital converter 1 2, 2 2: Digital signal processor 2 4: Bit selector s 1 0 2 to s 1 0 8: Mark the first embodiment of each process step. Once, FIG. 2 shows a scanning device according to a preferred embodiment of the present invention = image bit 7G output device, this output device includes: analog / two = = back pass The analog image data is converted into digital shell material and output. The digital signal processor 22 is coupled to and compensates for the digital image data, and the number of bits is as follows: The heart image m is last and the bit selector 24 is coupled to The digital signal processor selects the digital image data after it is selected. The solid fool bit-its 1m 'analog / digital converter 20 outputs digital image data of 16 bits, and the N-bit digital image data contains overflow bits. The digital image data after continuous H f is taken as a digit digital image {^ = 16 bits in the image data, and the post-digital image data is selected as bj ~ bj_i5, where bj represents the first of the N-bit digital image data Bits.

In one embodiment of the bit data, the post-digital image data is selected as N consecutive bits in N ί ί Ν / Λ, and the post-digital image b Γ is selected: Ν :: the bth name in the image data-眇 1 Bit, and DJ represents the j-th bit in the N-bit digital image data. The first embodiment Θ refers to FIG. 3, which illustrates a scan of the preferred embodiment of the present invention.

587388

Modification of the image bit output method flow in the scanner si 04 si 06 s 1 〇 2. After scanning the file, an analog seven is sent. The method flow is as follows: Convert the analog image data: f data. Digital image data is compensated ^ Number = image data. data. After the N-bit digital image s 108 is selected, the n-bit digital image data is selected and the M-bit selected digital image g is output. Is the j-th bit in the N-bit digital image data; and the subsequent M bits in the digital image 1 body number 1 image data are selected. 豕 贝 豕 is the N-bit digital image data contains LIT; the image data is 16 bits, and the N-bit digital image data in another embodiment of the present invention, if the whiteness of the digital image data is 6 5 3 0 0, the reference white 6 5 3 0 0 is digitized The signal processor supplements the output with 65535, and the reference white above 65300 outputs with more than 65535. The compensated data includes not only the original digital image data, but also the overflow bit image data. To provide the scanner user to take. Therefore, the 'image bit output method in the scanner can be determined by the scanner user to output the original digital image data or the ^ bit smart = negative material containing the overflow bit to provide the latter signal Processor better and more accurate raw image data To sum up, the image bit output device and method in the scanner of the present invention has the following advantages:

587388 _Case No. 91125111_Year Month Day__ V. Description of the invention (6) (1) The information of the bright part can be output to provide more accurate compensation for the signal processor in the later stage. (2) The influence of the digital image data after compensation on the original data can be eliminated. (3) The user of the scanner can output the original digital image data or the digital image data containing overflow bits. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes and retouch without departing from the spirit and scope of the present invention. The scope of protection of the invention shall be determined by the scope of the attached patent application.

9661twfl.ptc Page 11 587388 _Case No. 91125111_ Year Month Revised _ Brief description of the diagram Brief description of the diagram: Figure 1 shows a conventional image bit output device in a scanner; Figure 2 shows this An image bit output device in a scanner according to an embodiment of the invention; and FIG. 3 illustrates a flowchart of an image bit output method in a scanner according to an embodiment of the invention.

9661twf1.ptc Page 12

Claims (1)

587388 --- sickle 91125111__ year, month and day n VI. Application for patent scope 1. An image bit output device in a scanner, which is used to process an analog image data transmitted from a document. The image bit device in the scanner includes: An analog / digital converter that receives the analog image data and outputs the digital image data;… a — a digital signal processor coupled to the analog / digital conversion to compensate the digital image data and output an N-bit digital image A bit selector is connected to the digital signal processor, selects a bit range of the digital image data output, and outputs an image data. '2 · The image 4 output device i in the scanner described in item 1 of the patent claim range, wherein the digital image output by the analog / digital converter is 16 bits. 3 · The n-bit digital image data in the scanning device η described in item 1 of the patent application scope contains an overflow device, in which the selected field is 16 consecutive 1 V images in the image data. Bei 枓 4 The N-bit number is outputted Λ such as ΐ ϊ ί ΐ ί The image output device in the scanner described in item 4 above selects the digital image data as b · ~ Article]. Units]. ~ M-15, ^ 6 · As the first item in the scope of patent application. Out of the device, ... select the digital image data after scanning the scanner to scan the output of one yuan to include, at f, to take the N digits [yuan lose L data L yuan lose: yuan lose. Image: yuan lose middle bj Generation. Yuan Loss. Image 587388 _ Case No. 91125111 _ Month and Year Amendment _ Six consecutive M bits in the patent application data. 7. The image bit output device in a scanner as described in item 6 of the scope of the patent application, wherein the selected digital image data is bj ~ bj-M-1 bit in the N-bit digital image data, And bj represents the j-th bit in the N-bit digital image data. 8. —A kind of image bit output method in the scanner, which is used to process an analog image data transmitted after scanning a document. The image bit output process is as follows: a. Convert the analog image data into a digital image Data; b. After the digital image data is compensated, output an N-bit digital image data; and c, after selecting the bit range of the N-bit digital image data output, output a selected digital image having one of the M bits data. 9. The image bit output method in a scanner as described in item 8 of the scope of patent application, wherein the selected digital image data is consecutive M bits in the N-bit digital image data. 10. The method for outputting image bits in a scanner as described in item 9 of the scope of patent application, wherein the selected digital image data is bj ~ bj-M-1 bits in the N-bit digital image data Bj represents the j-th bit in the N-bit digital image data. 11. The method for outputting image bits in a scanner as described in item 8 of the scope of patent application, wherein the digital image data is 16 bits. 1 2. The image bit output method in a scanner as described in item 8 of the scope of patent application, wherein the N-bit digital image data contains overflow bits. 9661twf1.ptc Page 14 587388 _Case No. 9125111_ Year Month Amendment_ VI. Patent Application Range 1 3. The image bit output method in the scanner as described in Item 8 of the Patent Application Range, where the scanner user can Select to output the original digital image data. 1 4. The method for outputting image bits in a scanner as described in item 8 of the scope of patent application, wherein the scanner user can select and output digital image data containing overflow bits. 9661twf1.ptc Page 15