A non-transitory computer-readable medium stores computer-readable instructions, when executed by a computer, causing the computer to execute a process. The process includes: obtaining image data; obtaining thread colors as available colors for sewing an embroidery pattern; setting a first color representing a target area; in a case where at least one color is assigned from the available colors as a color representing the target area, selecting a color close to the first color when combined with the at least one color assigned, from the available colors, as a candidate; determining whether a difference between color information representing the at least one color assigned and color information representing the candidate is smaller than a threshold value; in a case where the difference is smaller than the threshold value, adding the candidate to the at least one color assigned; and generating embroidery data associating thread color data with position data.

A thread color comparison unit compares and judges whether or not a comparison target is the same as a comparison reference with a given thread color of a given design stored in a thread color storage unit as the comparison target and with a given thread color of another given design that differs from the given design as the comparison reference. A thread color grouping unit performs grouping for the comparison target and the comparison reference included in different designs when the comparison target and the comparison reference are the same color. When the thread color comparison unit has judged that the comparison target is the same as the comparison reference, the thread color storage unit stores information such that the comparison target is to be sewn together with the comparison reference that has been judged to be the same, and the sewing data for the comparison target is removed.

A thread color comparison unit compares and judges whether or not a comparison target is the same as a comparison reference with a given thread color of a given design stored in a thread color storage unit as the comparison target and with a given thread color of another given design that differs from the given design as the comparison reference. A thread color grouping unit performs grouping for the comparison target and the comparison reference included in different designs when the comparison target and the comparison reference are the same color. When the thread color comparison unit has judged that the comparison target is the same as the comparison reference, the thread color storage unit stores information such that the comparison target is to be sewn together with the comparison reference that has been judged to be the same, and the sewing data for the comparison target is removed.

Provided is a sewing machine in which a stitching needle and a holding frame holding an article to be sewn are positioned relative to each other based on sewing pattern data defining a plurality of needle drop positions, and sewing is performed in accordance with a sewing pattern. The sewing machine includes: an imager for capturing an image of the holding frame; a position detector for detecting, from the image captured by the imager, the position of an indicator indicating a reference position marked in an object to be imaged; and a corrector which, based on a deviation of a detected position of the indicator detected by the position detector with respect to a regular position defined in advance for the indicator, corrects a plurality of needle drop positions defined in the sewing pattern data.

A method of generating an image that shows an embroidery area in an embroidery frame for computerized embroidery includes: acquiring a first image of a calibration board that has multiple feature points forming a contour approximating an embroidery area defined by the embroidery frame; identifying the feature points of the calibration board in the first image to acquire multiple graphical feature points; acquiring a geometric curved surface that fits the graphical feature points and that includes multiple curved surface points; acquiring a second image in which the embroidery area of the embroidery frame is shown; and performing image correction on the second image based on the geometric curved surface to generate a corrected image.

A non-transitory computer-readable medium storing computer-readable instructions. The instructions, when executed, cause a processor of a sewing data generation device configured to generate sewing data to perform steps. The steps include acquiring a sewing area in which a pattern is to be sewn and acquiring a target area in which a pattern is to be arranged. The steps further include generating a plurality of sewing data. Each of the plurality of sewing data is data to form stitches of a plurality of stippling patterns inside the acquired target area. The steps further include associating the sewing data with arrangement information, for each of the plurality of sewing data, and outputting the sewing data and arrangement information that have been associated with each other. The arrangement information indicates an arrangement of each of the stippling patterns to be sewn on the basis of the sewing data.

A non-transitory computer-readable medium storing computer-readable instructions. The instructions, when executed, cause a processor of a sewing data generation device configured to generate sewing data to perform steps. The steps include acquiring a sewing area in which a pattern is to be sewn and acquiring a target area in which a pattern is to be arranged. The steps further include generating a plurality of sewing data. Each of the plurality of sewing data is data to form stitches of a plurality of stippling patterns inside the acquired target area. The steps further include associating the sewing data with arrangement information, for each of the plurality of sewing data, and outputting the sewing data and arrangement information that have been associated with each other. The arrangement information indicates an arrangement of each of the stippling patterns to be sewn on the basis of the sewing data.

A non-transitory computer-readable medium stores computer-readable instructions for sewing data generation. The computer-readable instructions are executed by a processor provided in a sewing data generation device. When executed by the processor in the sewing data generation device, the computer-readable instructions instruct the processor to perform following processes. First, the processor acquires a pattern. And, the processor divides the acquired pattern into a first pattern and a second pattern. The second pattern includes an overlapping portion. The overlapping portion in the second pattern partially overlaps with the first pattern. The processor generates sewing data to sew each of the first pattern and the second pattern on a sewing object. And, the processor generates processing data to process, in full size, a processing pattern. The processing pattern is obtained by excluding the overlapping portion from the second pattern, on a sheet-like processing object different from the sewing object.

A non-transitory computer-readable medium stores computer-readable instructions for sewing data generation. The computer-readable instructions are executed by a processor provided in a sewing data generation device. When executed by the processor in the sewing data generation device, the computer-readable instructions instruct the processor to perform following processes. First, the processor acquires a pattern. And, the processor divides the acquired pattern into a first pattern and a second pattern. The second pattern includes an overlapping portion. The overlapping portion in the second pattern partially overlaps with the first pattern. The processor generates sewing data to sew each of the first pattern and the second pattern on a sewing object. And, the processor generates processing data to process, in full size, a processing pattern. The processing pattern is obtained by excluding the overlapping portion from the second pattern, on a sheet-like processing object different from the sewing object.

A appliqu method includes: acquiring a first image of a first fabric piece; performing edge detection on the first image to acquire a plurality of edge points of the first fabric piece; calculating, for each of the edge points, coordinates of the edge point in a coordinate system corresponding to a computerized embroidery machine; and embroidering the first fabric piece onto a second fabric piece along an embroidering path formed by the coordinates of the edge points in the coordinate system.