Abstract: The disclosure provides an image blending method. The method includes projecting a plurality of images onto a projection surface, respectively, wherein an image of the first portion of the first image and an image of the first portion of the second image projected onto the projection surface overlap each other in the first overlapping area on the projection surface; the image parameters of all pixels of the first non-overlapping area and the second non-overlapping area are adjusted according to the position of the first non-overlapping area and the position of the second non-overlapping area, such that the black-level brightness of the first non-overlapping image in the first non-overlapping area of the first image and the black-level brightness of the second non-overlapping image in the second non-overlapping area of the second image are close to the black-level brightness of the first overlapping image in the first overlapping area.

Abstract: The disclosure provides an image blending method. The method includes projecting a first image and a second image onto a projection surface by a first projector and a second projector, respectively, and the first image and the second image overlap each other; and projecting the first control pattern onto the first image, adjusting the first control pattern such that a first control pattern frame matches a boundary of an overlapping area, and thereby identifying a position of a first non-overlapping area in the first image. Additionally, a similar operation is performed by the second projector to identify a second non-overlapping area in the second image. All pixels in the first non-overlapping area and the second non-overlapping area are adjusted such that the black-level brightness of the first non-overlapping area and the second non-overlapping area correspond to the black-level brightness of the overlapping area to obtain better brightness uniformity.

Abstract: The disclosure provides an image blending method. The method includes projecting a plurality of images onto a projection surface, respectively, wherein an image of the first portion of the first image and an image of the first portion of the second image projected onto the projection surface overlap each other in the first overlapping area on the projection surface; the image parameters of all pixels of the first non-overlapping area and the second non-overlapping area are adjusted according to the position of the first non-overlapping area and the position of the second non-overlapping area, such that the black-level brightness of the first non-overlapping image in the first non-overlapping area of the first image and the black-level brightness of the second non-overlapping image in the second non-overlapping area of the second image are close to the black-level brightness of the first overlapping image in the first overlapping area.

Abstract: A projection device including a projecting unit, an input unit and a processor and an image adjusting method of the projection device are provided. The projecting unit projects a first image to a projection surface. The input unit receives an input operation. The processor is electrically connected to the projecting unit and the input unit. The processor divides the first image into at least one block according to the input operation, selects one block from the at least one block to serve as a to-be-adjusted block, defines at least one control point within the to-be-adjusted block, and adjusts a position of the at least one control point so as to adjust a part of the first image. With the device and method provided, a user may independently adjust one block of the image without adjusting other blocks, so as to improve image authenticity and user satisfaction.

Abstract: The disclosure provides an image blending method. The method includes projecting a plurality of images onto a projection surface, respectively, wherein an image of the first portion of the first image and an image of the first portion of the second image projected onto the projection surface overlap each other in the first overlapping area on the projection surface; the image parameters of all pixels of the first non-overlapping area and the second non-overlapping area are adjusted according to the position of the first non-overlapping area and the position of the second non-overlapping area, such that the black-level brightness of the first non-overlapping image in the first non-overlapping area of the first image and the black-level brightness of the second non-overlapping image in the second non-overlapping area of the second image are close to the black-level brightness of the first overlapping image in the first overlapping area.

Abstract: A projection system including a processing device and a projector is provided. The projector is coupled to the processing device. The projector includes a projection unit and an image capturing unit. The projection unit is configured to project an image frame onto a projection plane, where the image includes a grid point array. The image capturing unit is configured to capture the image frame on the projection plane according to a plurality of setting parameters, so as to obtain a plurality of captured images corresponding to the setting parameters. The processing device selects one of the captured images meeting a preset image condition as a desired captured image, and sets the image capturing unit according to a desired setting parameter. In addition, an automatic setting method is also provided. The projection system of the invention can operate without complex manual setting procedures.

Abstract: A projection device including a projecting unit, an input unit and a processor and an image adjusting method of the projection device are provided. The projecting unit projects a first image to a projection surface. The input unit receives an input operation. The processor is electrically connected to the projecting unit and the input unit. The processor divides the first image into at least one block according to the input operation, selects one block from the at least one block to serve as a to-be-adjusted block, defines at least one control point within the to-be-adjusted block, and adjusts a position of the at least one control point so as to adjust a part of the first image. With the device and method provided, a user may independently adjust one block of the image without adjusting other blocks, so as to improve image authenticity and user satisfaction.

Abstract: A projection system including a projection device, an image capturing device and a processing device is provided. The projection device projects a plurality of grid patterns to a projection target. The projection target includes a border region and a projection region. The border region surrounds the projection region. The grid patterns are deformed at the border region. The image capturing device captures a capturing image including an image of the projection target. The image of the projection target includes a deformation region. The processing device receives the capturing image including the image of the projection target, and determines a position of the border region according to the deformation region of the image of the projection target, and controls the projection device to project a projection image to the projection region of the projection target according to the position of the border region.

Abstract: A projection system including a processing device and a first projector is provided. The first projector includes a first projection unit and a first image capturing unit. The first projection unit is configured to sequentially project a first reference image and a second reference image. The first image capturing unit is configured to sequentially obtain a first captured image and a second captured image. The processing device is adapted to compare the first captured image and the second captured image to obtain a position of an image region having a pixel value change among the first captured image and the second captured image. The processing device defines the position of the image region having the pixel value change as a valid identification region. In addition, an automatic setting method is also provided.

Abstract: A projection apparatus and a correcting method of a display image are provided. Positions of identification points and an original point are determined, where the positions of the identification points relate to a size of the display image. An indication line is generated according to a selected identification point of the identification points and the original point. A correcting graphic content on the display image, which includes the identification points, the original point and the indication line, is displayed. A control signal, which indicates a movement of the selected identification point, is received. The position of the selected identification point and the indication line according to the control signal are modified, to modify the size of the display image.

Abstract: The disclosure provides an image blending method. The method includes projecting a plurality of images onto a projection surface, respectively, wherein an image of the first portion of the first image and an image of the first portion of the second image projected onto the projection surface overlap each other in the first overlapping area on the projection surface; the image parameters of all pixels of the first non-overlapping area and the second non-overlapping area are adjusted according to the position of the first non-overlapping area and the position of the second non-overlapping area, such that the black-level brightness of the first non-overlapping image in the first non-overlapping area of the first image and the black-level brightness of the second non-overlapping image in the second non-overlapping area of the second image are close to the black-level brightness of the first overlapping image in the first overlapping area.

Abstract: The disclosure provides an image blending method. The method includes projecting a first image and a second image onto a projection surface by a first projector and a second projector, respectively, and the first image and the second image overlap each other; and projecting the first control pattern onto the first image, adjusting the first control pattern such that a first control pattern frame matches a boundary of an overlapping area, and thereby identifying a position of a first non-overlapping area in the first image. Additionally, a similar operation is performed by the second projector to identify a second non-overlapping area in the second image. All pixels in the first non-overlapping area and the second non-overlapping area are adjusted such that the black-level brightness of the first non-overlapping area and the second non-overlapping area correspond to the black-level brightness of the overlapping area to obtain better brightness uniformity.

Abstract: A projection system including a processing device and a plurality of projectors is provided. The projectors are disposed above a projection plane or below the projection plane. The processing device determines whether the projectors are disposed above the projection plane or below the projection plane according to a firmware setting of each of the projectors. When one of the projectors disposed above the projection plane projects a projection mode determination image, the processing device analyzes captured images captured by remainders of the projectors in respective image capture areas of the projection plane to determine projection modes of the projectors. In addition, an automatic setting method is also provided. The projection system of the invention may be readily set up based on various projection requirements.

Abstract: A projection system and a projection method are provided. A projector projects a correction image towards a projection screen. The correction image has a pattern, a portion of the pattern exceeds a frame of the projection screen, and the pattern includes strip regions. An image capturing device obtains a captured image towards the projection screen and transmits the captured image to a processor. The captured image has brightness information of the strip regions. The processor analyzes a brightness difference of the strip regions between the projection screen and the frame in the captured image, calculates a position of the frame according to the brightness difference, and performs calculations according to the position of the frame to obtain a coordinate conversion table. The projector performs a warping operation on the projected image according to the table and projects the warped projected image into the projection screen.

Abstract: A projection system and a projection method are provided. A projector projects a correction image towards a projection screen. The correction image has a pattern, a portion of the pattern exceeds a frame of the projection screen, and the pattern includes strip regions. An image capturing device obtains a captured image towards the projection screen and transmits the captured image to a processor. The captured image has brightness information of the strip regions. The processor analyzes a brightness difference of the strip regions between the projection screen and the frame in the captured image, calculates a position of the frame according to the brightness difference, and performs calculations according to the position of the frame to obtain a coordinate conversion table. The projector performs a warping operation on the projected image according to the table and projects the warped projected image into the projection screen.

Abstract: A projection system including a projection device, an image capturing device and a processing device is provided. The projection device projects a plurality of grid patterns to a projection target. The projection target includes a border region and a projection region. The border region surrounds the projection region. The grid patterns are deformed at the border region. The image capturing device captures a capturing image including an image of the projection target. The image of the projection target includes a deformation region. The processing device receives the capturing image including the image of the projection target, and determines a position of the border region according to the deformation region of the image of the projection target, and controls the projection device to project a projection image to the projection region of the projection target according to the position of the border region.

Abstract: A projection system including an image capturing device, a processing device and a projection device is provided. The image capturing device is used for capturing a first image of a projection surface. The first image includes a plurality of positioning images. The processor receives the first image. The processing device calculates to generate a plurality of positioning points according to the positioning images. The projection device projects a second image to the projection surface according to the positioning points. The second image includes a plurality of deformation points. An amount of the deformation points and an amount of the positioning points on the projection surface are consistent, such that the projected image is automatically adjusted to a range preset by the user.

Abstract: A projection system including a processing device and a plurality of projectors is provided. The projectors are disposed above a projection plane or below the projection plane. The processing device determines whether the projectors are disposed above the projection plane or below the projection plane according to a firmware setting of each of the projectors. When one of the projectors disposed above the projection plane projects a projection mode determination image, the processing device analyzes captured images captured by remainders of the projectors in respective image capture areas of the projection plane to determine projection modes of the projectors. In addition, an automatic setting method is also provided. The projection system of the invention may be readily set up based on various projection requirements.

Abstract: A projection system including a processing device and a first projector is provided. The first projector includes a first projection unit and a first image capturing unit. The first projection unit is configured to sequentially project a first reference image and a second reference image. The first image capturing unit is configured to sequentially obtain a first captured image and a second captured image. The processing device is adapted to compare the first captured image and the second captured image to obtain a position of an image region having a pixel value change among the first captured image and the second captured image. The processing device defines the position of the image block having the pixel value change as a valid identification region. In addition, an automatic setting method is also provided.

Abstract: A projection system including a processing device and a projector is provided. The projector is coupled to the processing device. The projector includes a projection unit and an image capturing unit. The projection unit is configured to project an image frame onto a projection plane, where the image includes a grid point array. The image capturing unit is configured to capture the image frame on the projection plane according to a plurality of setting parameters, so as to obtain a plurality of captured images corresponding to the setting parameters. The processing device selects one of the captured images meeting a preset image condition as a desired captured image, and sets the image capturing unit according to a desired setting parameter. In addition, an automatic setting method is also provided. The projection system of the invention can operate without complex manual setting procedures.