JPH05282421A - Image reader - Google Patents

Abstract

PURPOSE:To read a film image without generating a defect and to easily eliminate a non-image area which forms an image noise in an image reader which outputs an image signal by reading the image of original film. CONSTITUTION:The image reader 1 which applies processing to an input image B obtained by reading the image of the original film F and outputs the image signal S is equipped with a size detecting means E to detect the size of the original film F, a trimming processing means A which performs trimming processing on the input image B, a trimming area setting means C to set a trimming area of same size as that of the image area of the original film F as a default value based on the size detected by the size detecting means E, and a trimming area travel means D to change the position of the trimming area set by the trimming area setting means C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus for reading an image on an original film and outputting an image signal,
For example, it is used as a film scanner for image processing of photographic film.

[0002]

2. Description of the Related Art A film scanner is a device for optically reading an original image (hereinafter referred to as "film image") from a photographic film (hereinafter referred to as "film") and outputting it as an image signal. Then, image editing such as trimming (extraction of a part of the image), enlargement, or reduction is possible.

Generally, such a film scanner is used in combination with a color printer, and a hard copy image corresponding to the film image is formed based on an image signal output from the film scanner.

The film to be read is sequentially set at the film image reading position of the film scanner, but the setting position is not accurate and a slight positional deviation occurs for each set.

Therefore, if an area having the same size as the image area of the film image is read, the non-image area around the film image is also read due to the positional deviation of the film, which causes image noise. Therefore, conventionally, an area having a size slightly smaller than the size of the image area is read in consideration of the positional deviation of the film.

[0006]

Therefore, the input image obtained by reading has a problem that the peripheral portion of the original image area is missing, and a perfect film image cannot be input. .. ..

In order to solve this problem, an area larger than the size of the image area is read so that all the images in the image area are included, and the input image obtained by the reading is trimmed. Therefore, it is conceivable to extract only the image in the image area and remove the image noise.

However, in that case, it is necessary to set a trimming area having the same size as the image area of the film image, and such a troublesome operation must be performed each time the film image is read. Become. In particular, when reading various types of films of different types (sizes), it is necessary to set trimming areas of different sizes each time, so that much time and labor are required for the operation.

In view of the above problems, it is an object of the present invention to provide an image reading apparatus capable of reading a film image without loss and easily removing a non-image area which causes image noise.

[0010]

In order to solve the above-mentioned problems, an apparatus according to the invention of claim 1 is, as shown in FIG.
Input image B obtained by reading the image of original film F
Image reading apparatus 1 for processing image and outputting image signal S
In accordance with the size detection means E for detecting the size of the original film F, the trimming processing means A for performing trimming processing on the input image B, and the size detected by the size detection means E. And a trimming area setting means C for setting the size of the trimming area in the trimming process.

In the apparatus according to the second aspect of the present invention, the trimming area setting means C is configured to set a trimming area having the same size as the image area of the original film F as a default value, and the trimming area setting means. It has a trimming area moving means D for changing the position of the trimming area set by C.

[0012]

The size detecting means E detects the size of the original film F, and the trimming area setting means C sets the size of the trimming area based on the detected size.

After the position of the set trimming area is changed by the trimming area moving means D and the size of the set trimming area is changed, the trimming processing means A is performed.
The trimming process for the input image B is performed by.

[0014]

FIG. 2 is a front view showing an outline of a film scanner 1 according to the present invention, and FIG. 3 is a main body 11 of the film scanner 1.
4 is a front view of various film carriers FC, FIG. 5 is a front view of the operation panel OP, FIG. 6 is a front view of the internal panel IP, and FIG. 7 is a screen HG.
It is a figure which shows the example of a display of.

The film scanner 1 includes a main body 11 in which an optical system for reading a film image and a control unit for processing image data are arranged, and a display device 12 for displaying the read image on a screen HG. Consists of. An operation panel OP is provided on the upper surface of the main body 11.

A dolly 22 is movably arranged left and right in a film mounting portion 21 provided on the main body 11, and a film carrier FC having a film F mounted therein is inserted into the dolly 22. There is.

As shown in FIG. 3, the truck 22 is provided with a carrier detection sensor 51 for detecting the presence or absence of the film carrier FC and a type detection sensor 52 (52a to 52d) for detecting the type of the film carrier FC. It is provided. Further, the main body 11 is provided with a position detection sensor 53 for detecting the position of the film carrier FC through a hole provided in the truck 22.
For these sensors, for example, a transmissive photo sensor is used.

The film carrier FC is shown in FIGS.
As shown in (d), a film F having a size of 4 × 5 inches
Film carrier FC1 for 1 and film carrier FC for film F2 of 6 × 4.5 cm size
FIG. 4B shows four types of film carriers FC3 for the continuous film F3 of 35 mm size and film carrier FC4 for the mount film F4 of 35 mm size, and 6 cm size film. In addition to the film carrier FC2 shown in FIG.
As shown in (g), three types of film carriers FC5-7 are used for the films F5-7 of 6 × 6, 6 × 7, and 6 × 9, respectively, and a total of seven types are used.

These film carriers FC have type detection holes 55 (55a ...
55d) and position detection holes 56 for positioning each film F, etc. are provided.

As shown in FIG. 5, the operation panel OP has a trackball 71 for moving a cursor displayed on the screen HG, an enter key 72 for inputting a button Z designated by the cursor, and a film image. An image input key 73 for reading and displaying on the screen HG, a print key 74 for instructing printout by an external color printer, and a stop key 75 for stopping image reading and printout are arranged. ing.

Inside the main body 11, an internal panel IP that can be operated by opening a cover (not shown) is provided. As shown in FIG. 6, the internal panel IP includes a user choice key 81 for instructing the user choice mode setting, a serviceman key 82 for instructing the serviceman mode setting, a total check key 83 for instructing the display of the total number of prints, Trouble reset key 84 for canceling the trouble state, initial key 85 for initial setting, CPU reset key 8 for resetting the CPU
6 and a destination code key 87 indicating the destination.

Various buttons Z for operation are also displayed on the screen HG of the display device 12. The screen HG is shown in FIG.
As shown in (a), it basically consists of a central image display area E1 and an operation display area E2 around it.

In the image display area E1, a blank is displayed in the initial state after the power is turned on, and after the film image is read by pressing the image input key 73 (ON), the film image or the edited image is displayed. To be done. Various buttons Z and a display unit Y are displayed in the operation display area E2. Functions of the button Z and the display unit Y shown in FIG. 7A are as follows.

That is, a submenu is displayed by the image adjustment button Z1, and image adjustment such as color balance can be set. The trimming mode is set by the trimming button Z2. The enlargement continuous shooting button Z3 sets the enlargement continuous shooting mode, and the output size can be set by the submenu. Reduction continuous shooting mode is set by the reduction continuous shooting button Z4. The output confirmation button Z5 displays a confirmation screen for confirming the relationship between the image to be printed out and the paper. The output size button Z6 displays a sub-menu for setting the paper size of the printer. The reset button Z7 cancels the set mode and initializes it. The number of prints (number of copies) is set by the number of sheets setting button Z8.

In the enlarged continuous shooting mode, one film image is enlarged and divided into a plurality of sheets to be printed out, and in the reduced continuous shooting mode, the same plurality of film images or one of the trimmed images is printed as one sheet. Print out side by side.

Further, the message display section Y1 displays the type of the film F loaded, the size of the printout paper, and other messages. The number of prints is displayed on the number display section Y2.

Further, a button Z by a sub menu as shown in FIG. 7B may be displayed in the empty portion on the right side of the operation display area E2. Button Z11
~ Z14 will be described later.

On the screen HG, a cursor CU is displayed together with an image, a button Z and the like. The operator moves the cursor CU to an arbitrary position on the screen HG by using the trackball 71 on the operation panel OP and turns on the enter key 72 to specify the position, thereby inputting the button Z or specifying the area for the image. It can be carried out.

Although not shown, the optical system built in the main body 11 includes a lamp unit having a halogen lamp, a plurality of mirrors for moving by scanning in the sub-scanning direction, a fixed mirror, an imaging lens, an optical filter. , And C for separating and reading the film image into three colors of R, G, and B.
It is composed of a one-dimensional image sensor IS including a CD array.

FIG. 8 shows the control unit 200 of the film scanner 1.
3 is a block diagram showing the configuration of FIG. The control unit 200 includes a CPU 201 that controls the entire film scanner 1 and a display controller (AGDC) 231 that controls the image displayed by the display device 12.

The CPU 201 has a CPU data bus 20.
4, a program ROM 202 storing a control program and data, a RAM 203 temporarily storing variables and other data necessary for executing the program,
Input / output interface 210 for input / output of signals, communication port 211 for communication with a printer, image input unit 221 for input processing of image signals read by the image sensor IS, input processing by image input unit 221 An input image memory 212 for storing the generated image data,
Also, an image output unit 222 that performs an edit process of image data for printout is connected.

The input / output interface 210 is connected with an operation panel OP, an internal panel IP, various sensors 50, drive circuits for a motor, a filter, an imaging lens, and a mirror, a lamp control circuit, and other circuits. ing.

The display controller 231 is provided with a Kanji ROM 232 and a VRAM via the AGDC data bus 205.
A display output unit 250 for performing an editing process for displaying the image data stored in the (video RAM) 240 and the VRAM 240 on the display device 12 is connected.

The VRAM 240 is composed of color separated R, G,
Three image planes for image data of each color of B, and two character planes C1 and C2 for fixed display elements such as button Z and moving display elements such as a cursor and a trimming frame, for a total of five. It has a plane.

The image data stored in the input image memory 212 is transferred to and stored in each of the R, G, and B image planes of the VRAM 240 under the control of the display controller 231. According to the command, a part of the image data is cut out, enlarged, or reduced.

FIG. 9 shows the image processing unit 3 of the control unit 200.
It is the block diagram which showed 00 along the flow of data.
The image processing unit 300 includes the image input unit 221, the image output unit 222, the display output unit 250, and the memory 307 described above.

The image input unit 221 includes an amplification conversion unit 301 and a position correction unit 30 for the image signal of each color of R, G and B.
2, lookup table 303, gamma correction unit 304
have.

The amplification / conversion unit 301 includes a video amplifier 321 having an amplification factor set by the voltage signal output from the DA converter 323, an AD converter 322 for performing quantization and converting into image data, and an AD converter 322. It has a DA converter 325 for giving a reference voltage, and a correction memory 324 for outputting data for shading correction to the DA converter 325 in synchronization with a pixel clock.

Data relating to the amplification factor is input from the CPU 201 to the DA converter 323 via the CPU data bus 204. As this data, the maximum value and the minimum value for each of the R, G, and B color components are extracted in advance based on a predetermined number of image data read by the preliminary scanning while the amplification factor is set to a predetermined value. , From its maximum value,
An amplification factor is obtained such that the maximum value becomes a predetermined value, and the obtained amplification factor is set. The video amplifier 321 can correct the difference in the sensitivity and the exposure condition among the colors R, G, B due to the difference in the type of the film F.

The position correction unit 302 includes an image sensor I
Correct the position difference between R, G, and B of S. That is, in the image sensor IS, the pixel lines for one line of each color of R, G, B are arranged in parallel with each other at a predetermined interval, so that the image data is delayed by delaying the image data by an amount corresponding to the interval. Make a match.

The lookup table 303 includes a CPU
Data is written from the CPU 201 via the data bus 204, and normalization processing is performed to make the amplitude of output data constant with respect to input data. By combining with the operation of the video amplifier 321, the difference in the type of the film F and the exposure condition can be corrected without requiring a special memory. It should be noted that these corrections are not performed in the case of a positive film, and are not performed even in the case of a negative film when the balance of the maximum value and the minimum value of R, G, B exceeds a predetermined range. , CPU 201.

The gamma correction unit 304 performs data correction processing, gamma correction processing, negative / positive reversal processing, and the like depending on the difference in negative / positive of the film F. The image data VD4 output from the gamma correction unit 304 is input to the image output unit 222 and the memory 307.

In the image output section 222, the color adjusting section 3
By 05, the feedback of the color adjustment processing using the color CRT and the correction processing for adjusting the output image data to the printer are performed.
6, the image data is electrically scaled in the main scanning direction and moved.

The memory 307 is a combination of the input image memory 212 shown in FIG. 8, a VRAM 240, and a display controller 231 for transferring data between them. That is, the image data VD4 output from the image input unit 221 is first directly input to the input image memory 2 as it is.
Stored in 12. The image data stored in the input image memory 212 is held as it is until the next new image is read by the image sensor IS. Then, depending on the contents of the editing process such as trimming, scaling, and moving,
Part or all of the image data stored in the input image memory 212 is enlarged or reduced to an appropriate magnification and then VRAM 2
The transferred data is read out as needed, and the transferred data is read out as necessary and output to the display output unit 250 as image data VD7.

In the display output unit 250, the color adjusting unit 3
By 08, the feedback of the color adjustment processing using the color CRT and the correction processing for adjusting the output image data to the display device 12 are performed.
Processing for synthesizing image data of each plane of the VRAM 240 is performed by 09, converted into an analog signal by the DA converter 310, and a video signal of each color of R, G, B is output to the display device 12.

FIG. 10 shows the scaling unit 3 of the image processing unit 300.
11 is a diagram showing an example of a circuit of No. 06, and FIG.
Timing diagram showing the signal state during enlargement processing by
2 is a timing chart showing a signal state at the time of reduction processing by the scaling moving unit 306.

The scaling moving unit 306 writes the image data VD5 and reads the image data VD6 from the memory 335, the write address counter 332 that generates an address when writing to the memory 335, and the memory 335 when reading from the memory 335. A read address counter 333 that generates an address, a comparison unit 334, and a clock control unit 33.
It consists of 1. The image data VD6 is read from the memory 335 in synchronization with the pixel clock SYNC.

The clock controller 331 uses the reference clock S
A write clock WCK and a read clock RCK are generated based on CLK and magnification data (Mag Data) input from the CPU 201.

At the time of writing, the write address counter 332 sets the clock W for writing with “0” as an initial value.
CK is counted and the count value is output as an address. At the time of reading, the read address counter 333 counts the clock RCK for reading with the value of the moving data (Mov.Data) as an initial value, and outputs the count value as an address.

At the time of enlargement, as shown in FIG. 11, the cycle of the read clock RCK becomes longer in accordance with the magnification (enlargement magnification), whereby the change of the address value at the time of reading becomes slower, and the pixel is read from the memory 335. Clock SYN
The same data is read a plurality of times by C, and enlargement processing is performed. In the example of FIG. 11, the size is doubled.

At the time of reduction, as shown in FIG. 12, the cycle of the write clock WCK becomes longer in accordance with the magnification (reduction rate), which delays the change of the address value at the time of writing and thins out the image data. It is written and written in the memory 335. The thinned image data is the pixel clock S
Since it is read by the YNC, the reduction processing is performed. In the example of FIG. 12, the size is reduced to half.

Since the read address output from the read address counter 333 starts from the value of the movement data input thereto, the image moves left and right according to the value of the movement data. In addition, when the read address counter 333 performs the subtraction operation by the clock RCK, a mirror image of the original image is obtained.

Repeat data (Repeat Dat
When a) is input, when the count value reaches the value of the repeat data, the recount signal (Load) is output from the comparison unit 334 and the movement data is set as the initial value of the read address counter 333. , Restart the count from that value. As a result, the address from the value of the moving data to the value of the repeat data is repeatedly output, and the data stored at that address is repeatedly read from the memory 335. This operation is performed during reduced continuous shooting.

As a basic operation of the film scanner 1 configured as described above, when simply printing a film image, the print key 74 is turned on after the film F is mounted. As a result, the film image is read and the image information corresponding to the film image is output to the external printer. In this case, the read image is not displayed.

When the output image is monitored prior to printout, or when image editing such as trimming, enlargement, reduction, or color tone adjustment is performed, the image input key 73 is pressed after the film F is mounted. Turn on. As a result, the film image is read and the read image is displayed on the screen HG of the display device 12.
When the print key 74 is turned on after performing the image editing setting operation while observing the displayed image, the film image is read again, and the set editing process is performed on the read image data. Will be printed out.

In the film scanner 1 of the present embodiment, when the cursor CU is in the image display area E1, the same effect as the input of the trimming button Z2 is produced and the trimming mode is set. That is, simply by moving the cursor CU into the image display area E1, the trimming mode is automatically set and the trimming area can be designated, and the cursor CU is moved to the image display area E1.
When the button Z is moved to outside (i.e., the operation display area E2), the trimming mode is canceled and each button Z can be selected.

Further, the cursor CU indicates the image display area E1.
When it is inside, it is displayed in a shape for trimming mode such as a cross shape, and when it is in the operation display area E2, it is displayed in an arrow shape for mode selection. by this,
The operator can easily recognize whether or not the trimming mode is set.

Here, the procedure of the operation related to the trimming mode will be described. When the operator wants to trim a film image, the operator displays the film image in the image display area E1 on the screen HG as described above, and then uses the trackball 71 and the enter key 72 to select two points. By specifying the trimming area.

That is, first, as shown in FIG. 13A, the cursor CU is moved to a point P1 which is one apex of the trimming area, and the enter key 72 is turned on. After that, when the cursor CU is moved, as shown in FIG. 13B, a rectangular trimming frame TF having a diagonal point between the point P1 and the cursor position is displayed. The trimming frame TF is deformed according to the movement of the cursor CU.

Therefore, the enter key 72 is turned on in a state where the trimming frame TF matches the area to be trimmed. As a result, the area surrounded by the trimming frame TF is designated as the trimming area.

After that, when it is desired to change the position of the trimming area, the enter key 72 is turned on with the cursor CU displayed in the trimming frame TF. Then, the trimming frame TF can be moved. Therefore, by operating the trackball 71 in this state, the trimming frame TF moves without being deformed in conjunction with the cursor CU. The operator appropriately moves the trimming frame TF to set the trimming area to an arbitrary position.

When the trimming area is decided, in order to confirm the trimmed image (trimmed image), the output confirmation button Z5 is pressed to enter the output confirmation mode.
Then, of the image data stored in the input image memory 212, the data of the portion corresponding to the trimming area is transferred to the VRAM 240 and displayed on the screen HG.

At this time, for example, when the normal copy image is displayed, the designated output paper is displayed in white in the image display area E1 of the screen HG, and the trimming image is arranged and displayed in the center of the paper. When the paper is a standard paper, the trimmed image is automatically scaled and displayed so that the trimmed image is maximized in the paper. Therefore,
When the size of the trimming area is changed, the magnification (magnification) M is automatically changed. Further, when the paper size is changed, the magnification M and the size of the trimming image are automatically changed in association with it. When the output size or the magnification M of the trimming image is designated, the trimming image is displayed in a size corresponding to that.

In the film scanner 1 of this embodiment,
The film image read by the image sensor IS is vertically (main scanning direction) 4 regardless of the type of film.
It has pixels of 096 dots and horizontal (sub scanning direction) 6144 dots, and its aspect ratio is 1: 1.5. On the other hand, the aspect ratio of standard paper is 1: 1.41, so
Only the portion corresponding to 5776 dots in the central portion in the horizontal direction of the film image is printed, and 184 dots in the horizontal direction at both ends are deleted.

The magnification M at the time of printout is such that one pixel of the film image is set to 1 pixel of the printer without electrically varying the pixel of the read film image.
The same size is used when printing out corresponding to dots. Therefore, if a film image is printed out at the same size by a 400 dpi printer, for example, 2
The image is 60 × 368 mm.

The magnification of the optical system is variable according to the type of the film F, that is, the size of the film F. That is, in the film scanner 1 of the present embodiment, the imaging lens moves according to the size of the set film F, but at that time, it is larger by 1 mm in the vertical and horizontal directions than the size of the image area of the film image. Positioned to read the area. For example, with a 35 mm size film F3, the size of the image area is 24 × 36.
mm, but the imaging lens is positioned so as to read an area of 26 × 38 mm which is larger by 2 mm vertically and horizontally.
The image in the area of 38 mm is input as a film image. Therefore, the read film image contains image noise in the non-image area in addition to the image in the image area.

In the trimming mode, when the read film image is displayed on the screen HG, the trimming frame initially set by the trimming frame default setting process described later is simultaneously displayed.

The trimming frame that is initially set displays a trimming area having the same size as the image area as a default value according to the type of the read film F, that is, the size of the film F. The trimming frame with the default value has the coordinates (Xt1, Yt
1) The coordinates (XA
1, YA1).

The trimming frame displayed in this way normally does not match the image area of the film image, but can be moved so as to match the image area by a subsequent operation, whereby the image of the non-image area is displayed. It is possible to easily trim the film image only in the image area that does not include noise.

Table 1 below shows various dimensions or sizes for various films F. In Table 1, the display area of the film image on the screen is a rectangular area whose diagonal points are the coordinates (XA1, YA1) (XA2, YA2), and the trimming frame is the coordinates (Xt1,
It is a frame showing a rectangular area whose diagonal points are Yt1) (Xt2, Yt2). The coordinates in the image display area E1 on the screen HG are set to the origin (0, 0) at the upper right end of the image display area E1, and the coordinates are downward (main scanning direction) and leftward (sub scanning direction). "1" per dot
Increment by one.

Therefore, the vertical size XA and the horizontal size YA of the display area of each film image are expressed by the following equations (1) and (2). XA = XA2-XA1 (1) YA = YA2-YA1 (2) where XA1 is always "0", and therefore (1)
The formula can be expressed as XA = XA2 (1a).

If the vertical dimension of the image area of the film image is Fx (mm) and the horizontal dimension is Fy (mm), the vertical size XA and the horizontal size YA can be expressed by the following equations (3) and (4). it can.

XA = (Fx + 2) × 300 / Fx (3) YA = (Fy + 2) × 300 × (Fy / Fx) / Fy (4) where (Fy / Fx) is the image size ratio. is there.

The image data read by the image sensor IS and stored in the input image memory 212 is VR.
Although the transfer to the AM 240 has been described above, at the time of the transfer, the image is enlarged or reduced to an appropriate magnification so as to have such a display size (XA × YA).

Next, regarding the trimming frame, Xt1 is "0" and Xt2 is "300" for all films F.
Is. Yt1 and Yt2 are represented by the following equations (5) and (6).

Yt1 = (450−300 × image size ratio) / 2 (5) Yt2 = (450 + 300 × image size ratio) / 2 (6) Then, the coordinates (Xt1, Yt) of the upper right end of the trimming frame.
1) coincides with the coordinates (XA1, YA1) at the upper right corner of the display area of the film image on the screen, XA1 = Xt
1, YA1 = Yt1, and YA2 from the equation (2).
= YA1 + YA, these and the above (3)-
The display positions of the film image and the trimming frame on the screen HG are obtained by the expression (6).

Next, the sizes and positions of the film image and the trimming frame displayed on the screen HG will be specifically described with reference to the drawings. FIG. 14 is a diagram showing a display state of the film image FI3 of the 35 mm film F3 on the screen HG.

The film image FI3 is displayed with 325 dots in the vertical direction and 475 dots in the horizontal direction in the image display area E1 on the screen HG. As described above, the film image FI3 reads an area that is larger by 1 mm vertically and horizontally than the image area EFG of the film F3. Therefore, the image area EFG (the hatched portion in FIG. 14) is in the set state of the film F3. Although it depends on the position, the film image FI3 is located at a substantially central portion of the film image FI3 and its peripheral portion is a non-image area ENG.

The default trimming frame TFD
3 has the same size as the image area EFG, and the upper right corner is displayed so as to match the film image FI3. In such a displayed state, the trimming frame TFD3 is moved to match the image area EFG, and the trimming process is performed thereafter, so that the film image FI3 including only the complete image area EFG not including the non-image area ENG. Can be obtained.

FIG. 15 is a diagram showing the display state of the trimming frame TFD with default values for various film images FI. As shown in FIG. 15, the trimming frames TFD for the films F other than the 35 mm film are closer to the center side in accordance with the display positions of the respective film images FI.

By the way, in the above-described embodiment, when the trimming frame TFD having the default value is displayed, the upper right end of the trimming frame TFD is made to coincide with the upper right end of the film image FI. Next, in the example shown in FIG. Trimming frame T
The FD is set and displayed so as to be arranged at the center of the film image FI.

FIG. 16 shows the default trimming frame TF.
It is a figure which shows the other Example of arrangement | positioning when setting D. As shown in FIG. 16, since the trimming frame TFD is arranged in the center of the film image FI, the trimming frame TFD is
Is closer to the image area EFG, and therefore the amount of movement of the trimming frame TFD for matching the trimming frame TFD with the image area EFG is reduced. If the film F is set properly in the center, the trimming frame TFD
Since the image area EFG and the trimming frame TFD do not need to be moved, the operation becomes easier.

The coordinates of the diagonal points of the trimming frame TFD in this case are obtained by the following equations (7) to (10). Xt1 = (XA-300) / 2 (7) Xt2 = 300 + (XA-300) / 2 (8) Yt1 = (450-300 × image size ratio) / 2 + (YA-300 × image size) Ratio) / 2 (9) Yt2 = (450 + 300 × image size ratio) / 2 + (YA−300 × image size ratio) / 2 (10) Next, the control unit 200 performs trimming. An example of processing will be described.

FIG. 17 is a diagram showing the trimming editing screen G0 and the confirmation screens G1 and G2. In the trimming editing screen G0 of FIG. 17A, the film image FI displayed in the image display area E1 and the trimming frame TF set by designating two points or the default value as described above. The set trimming frame TF (T
FD) is displayed.

When the output confirmation mode is entered by pressing the output confirmation button Z5, a confirmation screen G1 as shown in FIG. 17B is displayed.
Is displayed. In the confirmation screen G1, the trimming image TI0 is enlarged in the vertical and horizontal directions at the same magnification and is displayed as the trimming image TI1 in the vertical direction of the image display area E1 so that the trimming image TI0 is displayed on both sides of the trimming image TI1 other than the trimming image TI1. The part of is displayed as white paper.

The state displayed on the confirmation screen G1 faithfully represents the actual relationship between the paper and the image when the print key 74 is turned on and the printout is performed. It is possible to easily confirm whether or not the hard copy image can be obtained, and misprinting can be prevented.

When the size of the trimmed image TI1 to be printed out is directly designated, the trimmed image TI1 of the designated size is displayed in the center of the image display area E1 on the confirmation screen G1 and Printing of the displayed state is performed.

When it is desired to change the size or position of the trimming image TI1 while the confirmation screen G1 is displayed, the enter key 72 is turned on to enter the re-trimming processing mode, and the original trimming mode shown in FIG. The image is displayed on the screen HG, and the trimming frame TF can be moved and changed on the screen HG. After that, the confirmation screen G1 is displayed again as the output confirmation mode, and by repeating these, the trimming as desired by the operator can be easily performed without mistake.

Further, in the film scanner 1 of the present embodiment, the trimmed image TI0 can be freely moved within the range of the output paper, laid out at an arbitrary position on the paper and printed out. The state of the layout can be displayed on the screen HG.

For example, after determining the trimming image TI0 as shown in FIG. 17A, the trimming image TI0 is determined.
To arrange 0 on the upper right side of the output paper, for example, specify the output size of the trimming image TI0 and
When the cursor CU is moved to move the trimming frame TF0 to a desired position in the output confirmation mode and the enter key 72 is turned on, the trimming image TI3 is displayed at the position designated by the cursor CU.

Next, based on the flow chart, the CPU 2
The control operation by 01 will be described. Figure 18 is CPU
20 is a main flowchart showing a schematic operation of 201.

When the power is turned on and the program is started, first, the initialization for initializing the state of the memory etc. is performed (step # 1), and the screen H
The initial screen is displayed on G (step # 2), and the process for shading correction in the image input unit 221 is performed (step # 3).

Next, it is checked whether or not the film image is being read (step # 4).
An image reading process (step # 5) for controlling signal processing by the image input unit 221, a sub-scanning process for scanning and reading a film image by the image sensor IS (step # 6), and a color correction process (step # 7). )
Are sequentially executed.

Subsequently, it is checked whether or not the current reading is for printout (step # 8).
That is, it is checked whether or not the reading is in response to the print key 74 being turned on.

If YES in step # 8, the image data transfer process for outputting the image information to the printer is executed (step # 9). If NO in step # 8, the read image is displayed. The image display process is executed (step # 10).

Then, an on-check of the stop key 75 is performed (step # 11), and when the stop key 75 is turned on, a reading stop process is executed (step # 11).
12). Then, communication processing with the printer is performed (step # 13), and the process returns to step # 4. If the answer is NO in step # 4, a film carrier process is performed to detect whether or not the film F is mounted and the type of film (step # 1).
4), cursor input processing related to position designation by the cursor CU (step # 15), and panel key input processing for accepting key operation on the operation panel OP (step # 15)
After sequentially executing 16), the process proceeds to step # 13 described above.

19 and 20 are flowcharts of cursor input processing. First, cursor position detection processing is performed (step # 20). In the cursor position detection process,
The coordinate position of the cursor CU on the screen HG at that time is detected. Based on the detection result, it is checked whether or not the position of the cursor CU is within the image display area E1 (step # 21).

If YES in step # 21, the trimming mode is set (set), and the cursor CU has a shape for trimming mode (steps # 22 and # 23). When the image data is transferred to the printer in the trimming mode, the data outside the area corresponding to the trimming area display set on the screen HG is replaced by white data in the scaling moving unit 306. To be deleted.

If the answer is NO in step # 21, the trimming mode is released (reset) and the cursor CU is set to the shape for mode selection (steps # 24 and # 25).

Next, on-check of the enter key 72 is performed (step # 26). When the enter key 72 is turned on, the coordinate value (cursor pointer) corresponding to the position of the cursor CU at that time is loaded (step # 2).
7).

By checking the output confirmation flag, it is determined whether or not the output confirmation button Z5 has been turned on, that is, whether or not after the output confirmation (step # 2).
8). If the output has not been confirmed (Yes in step # 28), it is checked whether or not the trimming mode is set (step # 29). If the trimming mode is set, trimming area setting processing is executed (step # 30).
If it is not the trimming mode, the mode setting process for setting the operation mode corresponding to the selection of each button Z is executed (step # 31).

After confirming the output (NO in step # 28), it is checked whether or not the trimming mode is set (step # 32), and in the trimming mode, re-trimming for resetting the trimming area. The process is executed (step # 33).

If the mode is not the trimming mode, it is determined whether or not the position of the cursor CU when the enter key 72 is turned on, that is, the value of the fetched cursor pointer is within the image display area E1 (step # 34). Image display area E
If it is within 1, the cursor position display process for converting the position of the cursor CU to the position (length) on the paper and displaying the numerical value is performed (step # 35), and the image movement process is performed (step # 36). If it is outside the image display area E1, mode setting processing is performed (step # 37).

21 and 22 are flow charts showing the mode setting process. It is determined which button Z is the input by discriminating the area of the cursor pointer (steps # 41 and 42), and the mode corresponding to each button Z is set and necessary processing is performed (step # 43). ~ 72).

In the image adjustment submenu process (step # 44), image density setting or color balance adjustment is performed. The trimming frame default setting process (step # 47) sets and displays the default value of the trimming frame, and the trimming frame correction process (step # 48) enlarges or reduces the trimming frame. The reduced continuous shooting mode reset process (step # 52) resets the other mode that is not compatible, and the enlarged continuous shooting submenu process (step # 53) specifies the size of enlarged continuous shooting. The enlarged continuous shooting mode reset process (step # 56) resets the other incompatible mode, and the reduced continuous shooting submenu process (step # 57) specifies the output mode.

In the output confirmation mode processing (step # 62), the relationship between the image to be printed out and the paper is displayed on the screen H.
Display on G. In the output size submenu process (step # 65), the size of the paper to be output is set. In the all flag reset process (step # 69), all currently set modes are reset, and in the initial screen display process (step # 70), the initial screen is displayed. In the user setting process (step # 72), the user sets a work environment such as an initial mode at reset or a mode memory. When the button Z is not input, the process is not performed and the process returns.

FIG. 23 is a flowchart of the trimming area setting process. First, it is checked whether the area setting flag is set (step # 81). In the case of YES in step # 81, the trimming area has already been set, and in this case, the following processing relating to the movement of the trimming area is executed.

That is, the area of the cursor pointer is determined (step # 82), and when the cursor pointer corresponds to the inside of the trimming area, the trimming frame TF is moved on the screen HG according to the operation of the trackball 71. The trimming frame moving process is repeatedly executed until the enter key 72 is turned on (steps # 83 to 85).

When the enter key 72 is turned on, the operation for moving the trimming frame is completed. Therefore, the process proceeds to step # 86, and the magnification M is set according to the size of the trimming area and the paper size. Continued Step # 87
Then, the amount of movement of the image for printing out at a predetermined position on the sheet is set according to the position of the trimming area.

If the answer is NO in step # 81, the following processing relating to the new setting of the trimming area is executed. First, a process of displaying a quadrangle having the designated first point in the image display area E1 and the second point at the cursor position as a diagonal point as a trimming frame TF (step # 88).
At this time, the trimming frame TF is deformed corresponding to the movement of the second point accompanying the cursor movement operation as described above.

After that, when the enter key 72 is turned on to confirm the second point, the area setting flag is set,
The pointers at the four corners of the trimming frame at that time are fetched (steps # 89-91).

FIG. 24 is a flowchart of the trimming frame moving process. First, the amount of movement of the cursor CU in the X direction (horizontal direction of the screen) and the Y direction (vertical direction of the screen) is calculated as the amount of movement of the trimming frame TF based on the cursor pointer captured last time and the current cursor pointer. (Step # 101).

Subsequently, by comparing the coordinate value of each of the left, right, upper and lower edges of the trimming frame TF at the present time with the amount of movement and the coordinate value of each of the left, right, upper and lower edges of the image display area E1. When the trimming frame TF is moved by the movement amount, it is checked whether or not the trimming frame TF protrudes from the image display area E1 (step # 102).

When the trimming frame TF extends, the movement amount is corrected so that the trimming frame TF fits within the image display area E1 (step # 103). Subsequently, the coordinate values of the four corners of the trimming frame TF after the movement are calculated by adding the movement amount corrected as necessary to the coordinate value of the trimming frame TF at the present time (step # 104).

Then, the processing for displaying the trimming frame TF after the movement (step # 105), and the trimming frame T
Cursor selection processing (step # 106) for displaying a cursor CU having a shape having an arrow in a predetermined direction according to the position of F is executed.

FIG. 25 is a flowchart of the output confirmation mode process. Set the output confirmation flag (step # 1
11), depending on the mode at that time, normal copy image display (step # 113), enlarged continuous image display (step # 114), reduced continuous image display (step # 11)
Perform 5).

FIG. 26 is a flowchart of the re-trimming process. The re-trimming process is performed when the trimming area is changed after confirming the output. First, the output confirmation flag is reset (step # 121), the entire film image is displayed (step # 122), and the trimming frame TF previously set is displayed overlaid on it (step # 122).
123).

Trimming frame correction processing is performed based on the displayed trimming frame TF (step # 12).
4). The trimming frame correction flag is checked, and the trimming frame correction process is repeated until the trimming frame correction process is completed (step # 125). While the trimming frame is being modified, the trimming menu MT shown in FIG. 7B is displayed on the screen HG.

FIG. 27 is a flowchart of the trimming frame correction processing. First, a trimming frame correction flag indicating that the trimming frame is being modified is set (step #
131). The area of the cursor pointer is determined, and the position of the cursor CU when the enter key 72 is turned on is determined (step # 132).

If the cursor pointer is at the position of the buttons Z11 to Z14, the processing corresponding to the type is performed. That is, if it is the enlargement button Z11, the process of enlarging the trimming frame TF is performed (step # 135), and the reduction button Z1.
If it is 2, the trimming frame TF is reduced (step # 136).

If the cancel button Z13 is selected, the trimming frame TF is hidden and the coordinate values Xt1, Xt2, Yt1, Yt2 of the trimming frame TF are reset and the trimming area setting flag is reset (step # 137). If the end button is Z14, the trimming frame correction flag is reset (step # 13).
8). When the processing for changing the trimming frame is performed, the magnification M is changed, so that the magnification setting processing for calculating the magnification M is performed (step # 139).

The trimming frame TF is enlarged or reduced here with the aspect ratio of the trimming frame TF kept constant. That is, in the case of enlargement, the trimming frame T
The coordinate values Xt1, Xt2, Yt1, and Yt2 of F are the following (1
It changes as shown in the equations (1) to (14).

Xt1 = Xt1-[(Xt2-Xt1) / 2] × [M (t) -1] (11) Xt2 = Xt2 + [(Xt2-Xt1) / 2] × [M (t) -1] (12) Yt1 = Yt1-[(Yt2-Yt1) / 2] × [M (t) -1] (13) Yt2 = Yt2 + [(Yt2-Yt1) / 2] × [M (t) -1 ] (14) However, M (t) is a magnification which increases in proportion to the time when the enlargement button Z11 is pressed.

Further, in the case of reduction, M (t) is a magnification that decreases in proportion to the time when the reduction button Z12 is pressed, and the coordinate value of the trimming frame TF is the same as the above (11).
~ It changes according to a formula (14).

If the cursor pointer is not the buttons Z11 to Z14, it is determined whether or not it is within the trimming frame TF (step # 141), and if it is within the trimming frame TF, trimming frame moving processing is performed (step # 142).

FIG. 28 is a flowchart of the image moving process. First, the position of the currently displayed image is obtained (step # 151). Next, the currently set mode is determined (step # 152), and if it is the normal copy mode, the movable range in the normal copy mode, that is, the value of the currently selected paper size is set (step # 153). ), If it is in the enlarged continuous shooting mode, the movable range during the enlarged continuous shooting, that is, the value for the number of output sheets of the currently selected paper size is set (step # 154). A movable range at the time of copying, that is, a value determined by the currently selected paper size and the number of paper divisions is set (step # 155).

Next, based on the previously fetched cursor pointer and the current cursor pointer, the cursor C
The amount of movement of U in the X and Y directions is calculated as the amount of movement of the image (step # 156).

Subsequently, the value obtained by adding the movement amount to the coordinate value of each of the left, right, upper and lower edges of the current image, and step # 153-.
By comparing with the coordinate values of the left, right, upper, and lower edges of the movable range set by any of 155, it is checked whether the image moves out of the movable range when the image is moved by the moving amount. (Step # 157).

If the image is projected, the movement amount is corrected so that the image is within the movable range (step # 1).
58). Then, the corrected moving amount is added to the coordinate value of the image at the present time to calculate the coordinate values of the four corners of the moved image, and the frame representing the position is displayed (step # 159).

These processes are repeated until the enter key 72 is turned on, and a frame indicating the moving destination of the image is displayed as the cursor CU moves. After that, when the enter key 72 is turned on (Yes in step # 160), the frame of the image is erased and the image is displayed instead of this (step # 161).

FIG. 29 is a flowchart of the trimming frame default setting process. Here, a process of automatically setting the trimming frame TFD of the default value according to the image size ratio of the film F is performed.

First, the size (type) of the film F currently selected by the type detection sensors 52a to 52d.
Is detected (step # 181). Table 2 below shows an example of the relationship between the states of the output signals of the type detection sensors 52a to 52d and the size of the film F. Based on the size of the film F detected, the coordinate values Xt1, Xt2, Yt1, Yt2 of the trimming frame TFD are obtained (step # 182), the trimming frame TFD is displayed on the screen HG (step # 183), and trimming is performed. The area setting flag is set (step # 184).

In step # 182, the coordinate value can be obtained based on the above-mentioned calculation formula. However, in this embodiment, since the type of film F to be set is limited, The calculation result obtained in advance is stored in the ROM, and the coordinate value is read from the ROM based on the detected size of the film F.

In the above embodiment, the size of the trimming frame TFD having the default value is the same as the size of the image area EFG, but it may be different.
For example, if the trimming frame TFD is made slightly smaller than the image area EFG and is arranged in the center of the film image FI, the necessity of moving the trimming frame TFD is reduced. If the trimming frame TFD is made slightly larger than the image area EFG, the non-image area ENG included in the film image FI can be used as it is as an edge for the image area EFG.

In the above embodiment, the printer controller 2
The configuration of 00, the operation timing, the processing content, the content and order of the flowchart, the configuration of the screen HG, the configuration of the film scanner 1, and the like can be variously changed other than the above.

Further, the apparatus of the present invention can be configured as a system including an image forming apparatus such as a printer, and various external devices can be used without including the image forming apparatus as in the above-described embodiment. It is also possible to configure it as a device that outputs image data to this device.

[0137]

According to the present invention, it is possible to read a film image without loss and easily remove a non-image area which causes image noise.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a front view showing an overview of a film scanner according to the present invention.

FIG. 3 is a front view of a truck provided on the main body of the film scanner.

FIG. 4 is a front view of various film carriers.

FIG. 5 is a front view of an operation panel.

FIG. 6 is a front view of an internal panel.

FIG. 7 is a diagram showing a display example of a screen.

FIG. 8 is a block diagram showing a configuration of a control unit of the film scanner.

FIG. 9 is a block diagram showing an image processing unit of the control unit along a data flow.

FIG. 10 is a diagram illustrating an example of a circuit of a scaling moving unit of the image processing unit.

FIG. 11 is a timing chart showing a signal state at the time of enlargement processing by the variable power moving unit.

FIG. 12 is a timing diagram showing a signal state at the time of reduction processing by the variable power moving unit.

FIG. 13 is a diagram showing a procedure for designating a trimming frame.

FIG. 14 is a diagram showing a display state of a film image of a 35 mm film on the screen.

FIG. 15 is a diagram showing a display state of trimming frames having default values for various film images.

FIG. 16 is a diagram showing another embodiment of the arrangement when setting the trimming frame with the default value.

FIG. 17 is a diagram showing a trimming editing screen and a confirmation screen.

FIG. 18 is a main flowchart showing a schematic operation of the CPU.

FIG. 19 is a flowchart of cursor input processing.

FIG. 20 is a flowchart of cursor input processing.

FIG. 21 is a flowchart showing a mode setting process.

FIG. 22 is a flowchart showing a mode setting process.

FIG. 23 is a flowchart of a trimming area setting process.

FIG. 24 is a flowchart of a trimming frame moving process.

FIG. 25 is a flowchart of output confirmation mode processing.

FIG. 26 is a flowchart of re-trimming processing.

FIG. 27 is a flowchart of trimming frame correction processing.

FIG. 28 is a flowchart of image movement processing.

FIG. 29 is a flowchart of trimming frame default setting processing.

[Explanation of symbols]

1 film scanner (image reading device) 52a to 52d type detection sensor (size detection means) 200 control unit (trimming processing means, trimming area setting means, trimming area moving means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Keiji Kusumoto Inventor Keiji Kusumoto 2-3-13 Azuchi-cho, Chuo-ku, Osaka-shi, Osaka, Osaka International Building Minolta Camera Co., Ltd.

Claims (2)

[Claims] 1. An image reading apparatus for processing an input image obtained by reading an image of an original film and outputting an image signal, wherein size detection means for detecting the size of the original film, and the input image Trimming processing means for performing trimming processing, and according to the size detected by the size detecting means,
An image reading apparatus comprising trimming area setting means for setting the size of a trimming area in the trimming process. 2. An image reading apparatus for processing an input image obtained by reading an image of an original film and outputting an image signal, wherein size detection means for detecting the size of the original film, and the input image Trimming processing means for performing trimming processing, and trimming area setting means for setting a trimming area having the same size as the image area of the original film as a default value based on the size detected by the size detecting means. An image reading apparatus comprising: a trimming area moving means for changing the position of the trimming area set by the trimming area setting means.