Abstract: A redeye image detection method for detecting at least one redeye image in an input image includes: deriving an edge detection result by performing an edge detection process to detect an edge characteristic of the input image; deriving a red pixel detection result by performing a red pixel detection process to detect red pixels in the input image, and utilizing a determining circuit to derive a preliminary detection result according to the edge detection result and the red pixel detection result, and derive the redeye image according to the preliminary detection result.

Abstract: An exemplary method for synchronizing audio playback of a plurality of digital media renders. The digital media renders include a digital audio/video (AV) media render and at least one digital audio media render. The method includes: detecting a relative time position difference between the digital AV media render and the at least one digital audio media render; and controlling audio playback of the digital audio media render to synchronize to audio playback of the digital AV media render according to the relative time position difference.

Abstract: A method for synchronizing audio playback of a plurality of digital media renders including a first digital audio media render and at least one second digital audio media render. The method includes: detecting a relative time difference between the first digital audio media render and the at least one second digital audio media render, and controlling audio playback of the at least one second digital audio media render according to the relative time difference, to make audio playback of the at least one second digital media render synchronized with audio playback of the first digital audio media render.

Abstract: An image processing apparatus and related method determine an ambient luminance value. Ambient luminance value is analyzed under three conditions: static, dynamic and backed-lighted. Image(s) are received in an image stream and different parts of pixel luminance values corresponding to the image(s) selected by different ways are averaged to generate several luminance averaging values, to therefore determine the ambient luminance value from several luminance averaging values.

Abstract: A QR code processing method includes an edge processing process, a QR code positioning process and a projection modification process. The edge processing process converts an original image into a binarized input image. The QR code positioning process includes a group search process and a tag search process. The group search process includes: deriving a plurality of luminance groups according to luminance values of pixels within an input image; identifying a plurality of finder pattern groups complying with QR code finder pattern among the plurality of luminance groups according to a central point of each luminance group; and deriving position information of each finder pattern group. The tag search process derives position information of the QR code according to the position information of the finder pattern groups. The projection modification process converts the input image into a modified image according to the position information of the QR code.

Abstract: A high resolution image producing method includes the following steps. Firstly, an object is continuously shot to produce plural shot images. Then, plural original images are selected from the plural shot images. Then, each of the original images is segmented into plural blocks, and the motion vector of each block of each original image is calculated. Then, a first original image is scaled-up to acquire a first basis image, and a second basis image is acquired by copying the first basis image. A phase error is calculated according to the first basis image, and an interpolating operation is performed on the second basis image to obtain a high resolution image.

Abstract: An image processing method includes: receiving an input image; referring to a first threshold value to compare a reference background image and the input image to determine a first foreground image within the input image; referring to the first foreground image to determine a second foreground image, which is different from the first foreground image, within the input image; and referring to a second threshold value, which is different from the first foreground image, to compare the reference background image and the second foreground image to determine a third foreground image within the input image. In addition, when generating the foreground image, a shadow effect is removed via a shadow removal method according to the present invention, and a better output image can thereby be derived.

Abstract: A method of controlling a printing apparatus is provided. The method is utilized for printing on a plurality of print media, and there are intervals between the print media. The method determines a starting reference point for printing on a print medium. The method includes generating a predicted interval position according to a interval reference position and an period average corresponding to an average width of a single print medium and an average width of a single interval; calculating a difference between a measured interval position and the predicted interval position; generating an error compensation value according to a compensation operation and updating the reference interval position by adjusting the reference interval position according to the error compensation value if the difference value is not greater than a threshold value; and controlling the printing apparatus to print by updating the predicted interval position according to the updated reference interval position.

Abstract: A control method applied to an edge detection apparatus is provided, wherein the edge detection apparatus includes a light emitting device, and the edge detection apparatus receives an output light of the light emitting device driven by a driving signal in order to generate a sensed signal. The method includes determining a first intensity difference value corresponding to a difference between high and low intensities of the sensed signal; adjusting the driving signal and accordingly determining a second intensity difference value corresponding to a difference between high and low intensities of the sensed signal in response to adjusting of the driving signal; comparing the first intensity difference value and a second intensity value to generate a comparison result; and adjusting the driving signal according to the comparison result.

Abstract: A communication system includes a time-to-digital converter, a digital low-pass filter, and a digital signal processor. The time-to-digital converter receives an in-phase signal of a frequency-shift keying signal and to generate a digital signal according to the in-phase signal. The digital low-pass filter receives the digital signal and to generate a filtered signal including N continuous words according to the digital signal. The digital signal processor divides up the N continuous words into N/2 word sets in order, wherein each of the N/2 word sets includes a first word and a second word, and if a difference between the first word and the second word meets a predetermined condition, the digital signal processor generates an output data and an output clock according to all the first words and the second words that have difference which meets the predetermined condition.

Abstract: A printing control method for line light source detection, for controlling at least one printing parameter of a printing apparatus. The printing control method includes: utilizing a line light source to scan a barcode to derive a barcode profile corresponding to the barcode; deriving a grading information corresponding to the barcode according to the barcode profile and a threshold, and deriving a modified barcode profile according to the grading information and the barcode profile; and adjusting the at least one printing parameter of the printing apparatus according to the modified barcode profile.

Abstract: A low power discrete-time electronic circuit includes an amplifier, and a variable current supply. The variable current supply is electrically connected to the amplifier, and is utilized for supplying high current to the amplifier during a switching operation and supplying low current to the amplifier during a non-switching period.

Abstract: A communication system includes a time-to-digital converter, a digital low-pass filter, and a digital signal processor. The time-to-digital converter receives an in-phase signal of a frequency-shift keying signal and to generate a digital signal according to the in-phase signal. The digital low-pass filter receives the digital signal and to generate a filtered signal including N continuous words according to the digital signal. The digital signal processor divides up the N continuous words into N/2 word sets in order, wherein each of the N/2 word sets includes a first word and a second word, and if a difference between the first word and the second word meets a predetermined condition, the digital signal processor generates an output data and an output clock according to all the first words and the second words that have difference which meets the predetermined condition.

Abstract: A barcode evaluation method for receiving an input image, performing an evaluation along a scanning direction upon the input image, and generating a barcode evaluation data includes: deriving at least one first luminance group in the input image according to a luminance threshold; documenting a plurality of characteristic values corresponding to the at least one luminance group, respectively; referring to a plurality of characteristic values of at least one specific first luminance group within the first luminance group to determine a distribution direction, and determining whether the specific first luminance group belongs to a barcode; and utilizing a processing element to generate the barcode evaluation data according to the input image, the distribution direction and the scanning direction.

Abstract: A low power discrete-time electronic circuit includes an amplifier, and a variable current supply. The variable current supply is electrically connected to the amplifier, and is utilized for supplying high current to the amplifier during a switching operation and supplying low current to the amplifier during a non-switching period.

Abstract: A processing method of detecting a barcode from an original image includes: an edge processing process, a barcode positioning process and a projection modification process. The edge processing process is for converting an original image into a binarized input image. The barcode positioning process is for deriving position information of the barcode, and includes: deriving a plurality of luminance groups according to luminance values of all pixels of the input image; utilizing a determining circuit to determine whether each luminance group complies with an identification bar and to derive position information of the identification bars; and deriving position information of the barcode according to the position information of the identification bars. The projection modification process converts the original image into a modified image according to the position information of the barcode.

Abstract: A printing control method for line light source detection, for controlling at least one printing parameter of a printing apparatus. The printing control method includes: utilizing a line light source to scan a barcode to derive a barcode profile corresponding to the barcode; deriving a grading information corresponding to the barcode according to the barcode profile and a threshold, and deriving a modified barcode profile according to the grading information and the barcode profile; and adjusting the at least one printing parameter of the printing apparatus according to the modified barcode profile.

Abstract: A barcode evaluation method for receiving an input image, performing an evaluation along a scanning direction upon the input image, and generating a barcode evaluation data includes: deriving at least one first luminance group in the input image according to a luminance threshold; documenting a plurality of characteristic values corresponding to the at least one luminance group, respectively; referring to a plurality of characteristic values of at least one specific first luminance group within the first luminance group to determine a distribution direction, and determining whether the specific first luminance group belongs to a barcode; and utilizing a processing element to generate the barcode evaluation data according to the input image, the distribution direction and the scanning direction.

Abstract: A high resolution image producing method includes the following steps. Firstly, an object is continuously shot to produce plural shot images. Then, plural original images are selected from the plural shot images. Then, each of the original images is segmented into plural blocks, and the motion vector of each block of each original image is calculated. Then, a first original image is scaled-up to acquire a first basis image, and a second basis image is acquired by copying the first basis image. A phase error is calculated according to the first basis image, and an interpolating operation is performed on the second basis image to obtain a high resolution image.

Abstract: An image processing method for deriving text characteristic images from an input image includes: performing a plurality of edge detecting processes upon the input image to generate a plurality of edge images, respectively, and deriving a first text characteristic image according to the edge images. The image detecting processes include: performing a first edge detecting process upon the input image to derive a first edge image according to a first upper threshold and a first lower threshold, and performing a second edge detecting process upon the input image to derive a second edge image according to a second upper threshold and a second lower threshold.