JP2012232445A5

JP2012232445A5 -

Info

Publication number: JP2012232445A5
Application number: JP2011101237A
Authority: JP
Filing date: 2011-04-28
Publication date: 2014-06-19
Anticipated expiration: 2031-04-28

Description

そのために本発明は、インクを吐出するためのノズル列を記録媒体に対して相対的に移動させながら記録データにしたがって前記ノズル列からインクを吐出し、前記記録媒体上の単位領域に対するＭ回の移動によって前記単位領域に画像を記録するために、前記Ｍ回の移動それぞれでの記録に用いられるＭ個の前記記録データを多値の画像データに基づいて生成する画像処理装置であって、前記画像データに基づいて前記単位領域に吐出されるインクの吐出量に関する情報を取得する取得手段と、前記取得手段により取得された前記情報が示すインクの吐出量に基づいて、前記画像データから前記Ｍ個の記録データを生成する生成手段と、を有し、前記生成手段は、前記取得手段により取得された前記情報が示すインクの吐出量が第１の量である場合、（ｉ）前記Ｍ回の移動のうちの１回目の前記移動による記録における記録率と、Ｍ回目の前記移動による記録における記録率と、がそれぞれＫ（Ｋは０＜Ｋ＜Ｍを満たす１つの自然数）回目の前記移動による記録における記録率よりも小さく、且つ、（ｉｉ）前記Ｍ回の移動それぞれによる記録における記録率のそれぞれが０％よりも大きくなるように、前記Ｍ個の記録データを生成し、前記取得手段により取得された前記情報が示すインクの吐出量が前記第１の量よりも多い第２の量である場合、（ｉｉｉ）前記Ｍ回の移動のうちの１回目の前記移動による記録における記録率と、Ｍ回目の前記移動による記録における記録率と、がそれぞれ前記Ｋ回目の移動による記録における記録率よりも小さく、且つ、（ｉｖ）前記Ｍ回の移動のうちのＬ（Ｌは０＜Ｌ＜Ｍ且つＬ≠Ｋを満たす１つの自然数）回目の前記移動による記録における記録率が前記Ｌ回目の移動以外のＬ−１回の前記移動それぞれによる記録における記録率のそれぞれよりも小さくなるように、前記Ｍ個の記録データを生成することを特徴とする。 To this end, the present invention discharges ink from the nozzle array according to the recording data while moving the nozzle array for ejecting ink relative to the recording medium, and performs M times for the unit area on the recording medium. An image processing apparatus for generating M pieces of recording data used for recording in each of the M movements to record an image in the unit area by movement based on multi-valued image data, An acquisition unit that acquires information on the discharge amount of ink discharged to the unit area based on image data; and the M from the image data based on the ink discharge amount indicated by the information acquired by the acquisition unit. Generating means for generating individual print data, wherein the generating means has a first amount of ink ejection indicated by the information acquired by the acquiring means. (I) The recording rate in the recording by the first movement out of the M times of movement and the recording rate in the recording by the movement of the Mth time are respectively K (K is 0 <K <M 1 natural number to be satisfied) is smaller than the recording rate in the recording by the first movement, and (ii) each of the M number of recordings in the recording by the M movements is larger than 0%. When the print data is generated and the ink discharge amount indicated by the information acquired by the acquisition unit is the second amount larger than the first amount, (iii) one of the M movements The recording rate in the recording by the movement of the first time and the recording rate in the recording of the movement of the Mth time are smaller than the recording rate in the recording by the Kth movement, and (iv) the M times The recording rate in the recording by the movement of the Lth movement (L is one natural number satisfying 0 <L <M and L ≠ K) is recorded by each of the L-1 movements other than the Lth movement. The M pieces of recording data are generated so as to be smaller than each recording rate.

Claims

Ink is ejected from the nozzle array in accordance with recording data while moving the nozzle array for ejecting ink relative to the recording medium, and is moved to the unit area by M movements with respect to the unit area on the recording medium. An image processing apparatus for generating M pieces of recording data used for recording in each of the M movements to record an image based on multivalued image data,
Obtaining means for obtaining information relating to the ejection amount of the ink ejected to the unit area based on the image data;
Generating means for generating the M pieces of print data from the image data based on the ink ejection amount indicated by the information acquired by the acquisition means;
The generating means includes
When the ink discharge amount indicated by the information acquired by the acquisition unit is the first amount, (i) the recording rate in the recording by the first movement out of the M movements, and the Mth time The recording rate in the recording by the movement is smaller than the recording rate in the recording by the movement of the Kth (K is one natural number satisfying 0 <K <M), and (ii) each of the M movements Generating the M pieces of recording data so that each of the recording rates in the recording by the recording medium is greater than 0%,
When the ink discharge amount indicated by the information acquired by the acquisition unit is a second amount larger than the first amount, (iii) recording by the first movement of the M movements And the recording rate in the recording by the M-th movement is smaller than the recording rate in the recording by the K-th movement, and (iv) L of the M-th movements (L is (1 natural number satisfying 0 <L <M and L ≠ K) The recording rate in the recording by the above-mentioned movement is smaller than each of the recording rates in the recording by each of the L−1 movements other than the L-th movement. The image processing apparatus is characterized in that the M pieces of recording data are generated.

When the ink discharge amount indicated by the information acquired by the acquisition unit is the second amount, the generation unit has a recording rate in recording by the L-th movement among the M movements ( The image processing apparatus according to claim 1, wherein the M pieces of recording data are generated so as to be equal to or less than 1 / M) × 0.1 × 100%.

When the ink discharge amount indicated by the information acquired by the acquisition unit is the second amount, the generation unit has a recording rate of 0 in the recording by the L-th movement among the M movements. The image processing apparatus according to claim 2, wherein the M pieces of recording data are generated so as to be%.

4. The sum of respective recording rates in recording by the L-1 times of movement from the first time of movement to the L-1 time of the movement is approximately 50%. The image processing apparatus according to claim 1.

5. The image processing apparatus according to claim 1, wherein the L is a natural number satisfying M / 2 ≦ L <M.

The image processing apparatus according to claim 4, wherein the L-th movement is the M−1th movement among the M movements.

When the ink discharge amount indicated by the information acquired by the acquisition unit is the first amount, the generation unit performs the recording rate in the recording by the first movement and the recording by the M-th movement. The recording rate is smaller than each of the recording rates in the recording by the first movement and the M-2 movements other than the M-th movement among the M movements. The image processing apparatus according to claim 1, wherein the recording data is generated.

The generating means includes
Binarization means for binarizing the image data and generating binary dot data;
According to each of the M mask patterns corresponding to each of the M movements, each of which is allowed to record the dot data and a non-recordable pixel that is not allowed to record the dot data. 8. Distribution means for generating the M pieces of recording data by distributing the dot data generated by the quantization means to each of the M movements. The image processing apparatus according to claim 1.

Ink indicated by the information acquired by the acquisition unit by selecting M first mask patterns when the ink ejection amount indicated by the information acquired by the acquisition unit is the first amount. And a selection means for selecting M second mask patterns when the discharge amount is the second amount,
The distribution unit distributes the dot data using any of the M first mask patterns and the M second mask patterns selected by the selection unit,
The M first mask patterns include: (i) a recording tolerance in the first mask pattern corresponding to the first movement and a recording in the first mask pattern corresponding to the M movement. The allowable ratio is smaller than the recording allowable ratio in the first mask pattern corresponding to the K-th movement, and (ii) the recording allowable ratio in each of the M first mask patterns is less than 0%. The recording allowable pixels are arranged so that the
The M second mask patterns include: (iii) recording allowance in the second mask pattern corresponding to the first movement and recording in the second mask pattern corresponding to the M movement. The allowable ratio is smaller than the recording allowable ratio in the second mask pattern corresponding to the K-th movement, and (iv) the recording allowable ratio in the second mask pattern corresponding to the L-th movement. The print permitting pixels are arranged so as to be smaller than the print permitting ratio in each of the M−1 second mask patterns other than the second mask pattern corresponding to the L-th movement. The image processing apparatus according to claim 8.

In the M first mask patterns, the print permitting pixels are arranged at mutually exclusive and complementary positions, and the M second mask patterns are at mutually exclusive and complementary positions. The image processing apparatus according to claim 9, wherein the recordable pixels are arranged.

The quantization means relates to a plurality of pixels in the unit area, the dot pattern in which a recording pixel corresponding to a pixel area where dots are recorded and a non-recording pixel corresponding to a pixel area where dots are not recorded is arranged in the image. The image processing apparatus according to claim 8, wherein the dot data is generated by quantizing data.

When the ink discharge amount indicated by the information acquired by the acquisition unit is the first amount, the first dot pattern is selected, and the ink discharge amount indicated by the information acquired by the acquisition unit Further comprises a selection means for selecting the second dot pattern when is the second quantity;
The quantization means quantizes the image data using either the first dot pattern or the second dot pattern selected by the selection means,
The first dot pattern includes: (i) the recording pixel in the first dot pattern arranged at a position corresponding to the recording allowable pixel arranged in the mask pattern corresponding to the first movement. And the number of the recording pixels in the first dot pattern arranged at a position corresponding to the recording allowable pixel arranged in the mask pattern corresponding to the M-th movement are respectively the K-th time. Less than the number of the recording pixels in the first dot pattern disposed at a position corresponding to the recording permissible pixel disposed in the mask pattern corresponding to the movement of, and (ii) the M number of pixels The number of the recording pixels in the first dot pattern arranged at a position corresponding to the recording allowable pixel arranged in each of the mask patterns is the M mask patterns. As non-zero for either the recording pixels are arranged,
The second dot pattern includes: (iii) the recording pixel in the second dot pattern arranged at a position corresponding to the recording allowable pixel arranged in the mask pattern corresponding to the first movement. And the number of the recording pixels in the second dot pattern arranged at a position corresponding to the recording permissible pixel arranged in the mask pattern corresponding to the M-th movement, respectively. Less than the number of the recording pixels in the second dot pattern arranged at the position corresponding to the recording permissible pixel arranged in the mask pattern corresponding to the movement of (iv) the movement of the Lth time The number of the recording pixels in the second dot pattern arranged at the position corresponding to the recording allowable pixel arranged in the corresponding mask pattern is the Lth movement More than any of the number of the recording pixels in the second dot pattern arranged at a position corresponding to the recording allowable pixel arranged in each of the M−1 mask patterns other than the corresponding mask pattern. The image processing apparatus according to claim 11, wherein the recording pixels are arranged so as to decrease.

While the nozzle array for ejecting ink is moved relative to the recording medium, ink is ejected from the nozzle array according to binary recording data, and the unit is moved by M times with respect to the unit area of the recording medium. In order to record an image in an area, the image processing apparatus includes a generation unit that generates M recording data used for recording in each of the M movements based on multi-valued image data,
The generation means is configured such that (i) a recording rate in recording by the first movement out of the M times of movement and a recording rate in recording by the Mth time of movement are N (N is (M−1 ) / 2 ≦ N ≦ M / 2 One natural number that is smaller than the recording rate in the recording by the above movement, and (ii) L, L + 1 of the M movements (L is M / 2) <M <1 <natural number satisfying L <M) The image processing apparatus is characterized in that the M pieces of recording data are generated so that each of the recording rates in the recording by each of the movements is substantially zero.

Ink is ejected from the nozzle array in accordance with recording data while moving the nozzle array for ejecting ink relative to the recording medium, and is moved to the unit area by M movements with respect to the unit area on the recording medium. An image processing method for generating M pieces of recording data used for recording in each of the M movements to record an image based on multivalued image data,
Obtain information on the amount of ink ejected to the unit area based on the image data,
Based on the ejection amount of ink indicated by the acquired information, the M pieces of recording data are generated from the image data,
When the ink discharge amount indicated by the acquired information is the first amount, (i) the recording rate in the recording by the first movement out of the M movements and the recording by the Mth movement. And (ii) recording in recording by each of the M movements, and (ii) recording in recording by each of the M movements. Generating the M recording data so that each of the rates is greater than 0%;
When the ink discharge amount indicated by the acquired information is a second amount larger than the first amount, (iii) a recording rate in recording by the first movement out of the M movements; , The recording rate in recording by the Mth movement is smaller than the recording rate in recording by the Kth movement, and (iv) L of the M movements (L is 0 <L < One natural number satisfying M and L ≠ K) so that the recording rate in the recording by the first movement is smaller than each of the recording rates in the recording by the L−1 movements other than the L-th movement. An image processing method, wherein the M pieces of recording data are generated.

An image recording apparatus for recording an image,
Ink is ejected from the nozzle array in accordance with recording data while moving the nozzle array for ejecting ink relative to the recording medium, and is moved to the unit area by M movements with respect to the unit area on the recording medium. Recording means for recording an image;
Obtaining means for obtaining information relating to the ejection amount of the ink ejected to the unit area based on the image data;
Generating means for generating M pieces of recording data used for recording in each of the M movements from multi-valued image data based on the ink ejection amount indicated by the information acquired by the acquisition means; Have
The generating means includes
When the ink discharge amount indicated by the information acquired by the acquisition unit is the first amount, (i) the recording rate in the recording by the first movement out of the M movements, and the Mth time The recording rate in the recording by the movement is smaller than the recording rate in the recording by the movement of the Kth (K is one natural number satisfying 0 <K <M), and (ii) each of the M movements Generating the M pieces of recording data so that each of the recording rates in the recording by the recording medium is greater than 0%,
When the ink discharge amount indicated by the information acquired by the acquisition unit is a second amount larger than the first amount, (iii) recording by the first movement of the M movements And the recording rate in the recording by the M-th movement is smaller than the recording rate in the recording by the K-th movement, and (iv) L of the M-th movements (L is 1 <natural number satisfying 0 <L <M and L ≠ K) The recording rate in the recording by the above-mentioned movement is smaller than each of the recording rates in the recording by each of the L−1 movements other than the L-th movement. As described above, the M recording data is generated.