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US 2024/0205354 A1Published application
Scanning system, file generating method, and storage medium storing program
AssigneeSeiko Epson Corporation
InventorHideaki KAWANO
Life of this patent
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Abstract
A scanning system includes a smoother that performs smoothing on image data and a merger that analyzes the image data on which the smoothing is performed and generates a highly compressed PDF file. The smoother performs smoothing using the pixel value of a pixel other than a pixel of a background color among pixels included in an area in which the smoothing is to be performed.
Claims8
A scanning system comprising:
- a scanner configured to scan an original document to generate image data;
- a smoother configured to perform smoothing on the image data;
- a classifier configured to analyze the image data on which the smoothing is performed, to differentiate between a pixel constituting a character and a pixel constituting a non-character in an image represented by the image data;
- a layer generator configured to, according to the differentiation between the pixels, generate, from the image data, a character layer including the pixel constituting a character and a non-character layer including the pixel constituting a non-character;
- a compression section configured to compress the character layer and the non-character layer by respectively different compression methods;
- and
- a merger configured to generate a file into which data on the compressed character layer and data on the compressed non-character layer are merged,
- wherein the smoother performs the smoothing using a pixel value of a pixel other than a pixel of a background color among pixels included in an area to be processed.
5 more elements
A file generating method comprising:
- performing smoothing on image data;
- analyzing the image data on which the smoothing is performed, to differentiate between a pixel constituting a character and a pixel constituting a non-character in an image represented by the image data;
- according to the differentiation between the pixels, generating a character layer, the character layer being a layer including the pixel constituting a character, and a non-character layer, the non-character layer being a layer including the pixel constituting a non-character, from the image data;
- compressing the character layer and the non-character layer by respectively different compression methods;
- and
- generating a file into which data on the compressed character layer and data on the compressed non-character layer are merged,
- wherein, in the smoothing, processing is performed using a pixel value of a pixel other than a pixel of a background color among pixels included in an area to be processed.
4 more elements
A non-transitory computer-readable storage medium storing a program that causes a computer to execute:
- a smoothing step of performing smoothing on image data;
- a classifying step of analyzing the image data on which the smoothing is performed, to differentiate between a pixel constituting a character and a pixel constituting a non-character in an image represented by the image data;
- a layer generating step of, according to the differentiation between the pixels, generating a character layer, the character layer being a layer including the pixel constituting a character, and a non-character layer, the non-character layer being a layer including the pixel constituting a non-character, from the image data;
- a compressing step of compressing the character layer and the non-character layer by respectively different compression methods;
- and
- a merging step of generating a file into which data on the compressed character layer and data on the compressed non-character layer are merged,
- wherein, in the smoothing step, the smoothing is performed using a pixel value of a pixel other than a pixel of a background color among pixels included in an area to be processed.
4 more elements
Dependencies are inferred from the claim text.