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Instruções de Operação Canon, Modelo MultiPASS L6000

Fabricante : Canon
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This point will have the value closest to 0%. Click the pixel. 5-54 PC Faxing Chapter 5 6. Click White Point. 7. Move the cursor over the Original thumbnail. As you move the cursor over the cover page, the white value, expressed as a percentage of the current pixel, appears to the left of the White Point button. 8. Move the dropper over the cover page until you find the whitest point. This is the point with the value closest to 100%. Click the pixel. 9. Click OK. Blurring an Image You can Blur the cover page to soften the edges and fields of a grainy color or grayscale image. Blur averages the color values of adjacent pixels, removing peaks, to make the cover page smoother. To blur an image: 1. Select the cover page or a cover page portion. 2. On the Adjust menu, select Blur. 3. In the Blur dialog box, move the Blur slider to the left for less blur, to the right for more blur. PC Faxing Chapter 5 PC Faxing 5-55 As you move the slider, the adjustments appear in the Current thumbnail. 4. Click OK to accept the changes. Click Cancel to abandon the changes. Sharpening an Image You can sharpen a cover page to increase the difference between color values of adjacent pixels, sharpening the appearance of a color or grayscale cover page. To sharpen an image: 1. Select the cover page or a cover page portion. 2. On the Adjust menu, click Sharpen. 3. In the Sharpen dialog box, move the Sharpen slider to the left to sharpen less, to the right to sharpen more. As you move the slider, the adjustments appear in the Current thumbnail. 4. Click OK to accept the changes. Click Cancel to abandon the changes. 5-56 PC Faxing Chapter 5 Removing Noise You can remove noise or distortions from the cover page. The Remove Noise filter averages the color values of adjacent pixels. To remove noise: 1. On the Adjust menu, point to Advanced, and then click Remove Noise. 2. Drag the Removal slider to the left to remove less noise, to the right to remove more noise. As you drag the Removal slider, your changes appear in the Current thumbnail. You can compare the changes to the Original thumbnail. 3. Click OK to accept your changes. Click Cancel to leave the cover page unchanged. Removing Moire Patterns You can remove moire patterns from a cover page. Because moire patterns are caused by the intersection of lines in two directions, removing the pattern requires the following procedure to be performed twice, resetting the angle option for each set of intersecting lines. PC Faxing Chapter 5 PC Faxing 5-57 To remove moire patterns: 1. Select the cover page area where the pattern occurs. 2. On the adjust menu, point to Advanced, and then click Remove Moire. 3. In the Angle box, enter the angle of the moire lines to be removed. 4. Drag the Remove Moire slider to the left to remove less, to the right to remove more. As you make changes to the image, your changes appear in the current thumbnail. You can compare the changes to the Original thumbnail. To better see your changes, you can use the zoom buttons to magnify the thumbnails. 5. Click OK to accept your changes. Click Cancel to leave the cover page unchanged. 5-58 PC Faxing Chapter 5 Removing JPEG Artifacts JPEG images that have been compressed using maximum compression may display scattered noise, called JPEG artifacts, around the image edges. You can remove these distortions. To remove JPEG artifacts: 1. Select the area of the cover page where the artifacts occur. 2. On the Adjust menu, point to Advanced, and then click Remove JPEG Artifacts. 3. In the Remove JPEG Artifacts dialog box, drag the Removal slider to the left to remove less, to the right to remove more. As you make changes to the cover page, your changes appear in the current thumbnail. You can compare the changes to the Original thumbnail. To better see your changes, you can use the zoom buttons to magnify the thumbnails. 4. Click OK to accept your changes. Click Cancel to leave the cover page unchanged. PC Faxing Chapter 5 PC Faxing 5-59 Removing Show-Through Image show-through is caused by patterns from the reverse side of a page showing through the original image. You can remove image show- through while preserving the image. To remove show-through: 1. Select the cover page portion you want to adjust. 2. On the Adjust menu, point to Advanced, and then click Remove Show-Through. 3. In the Remove Show-Through dialog box, use the Range slider to adjust Removal slider sensitivity according to the contrast of the pixels showing through to the background. If there is a wide range between color, move the Range slider to the right. If there is little range between the pixels showing through and the background, move the slider to the left. 4. Drag the Removal slider to the left to remove less show-through, to the right to remove more show-through. 5-60 PC Faxing Chapter 5 5. Click OK to accept your changes. Click Cancel to leave the cover page unchanged. Removing Dust Even if you have carefully cleaned the original cover page, there m...

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