These white or black areas can significantly skew the calculation of color balance if not ignored.īuffer is a percentage relative to the dimensions of the image area. This option is useful to account for sizing or positioning errors of the crop box that incorrectly include parts of the image from its outer edges. Unlike Crop | Border (%), the buffer does not affect the size of the image. This causes VueScan to ignore some image data just inside the edge of the crop box of the image when computing the color balance of the image. Because border will extend the effective area that is cropped, it will tend to include areas of white (or black) in the resulting image if these parts of the image were not ignored when computing color balance, they could skew the results.īorder is a percentage relative to the dimensions of the cropped area, up to the maximum size of the preview area.īorder can also be set as a negative value in order to reduce the size of the image.Ĭompare this option to Crop | Buffer (%). This option is useful for adjusting the size or position of the crop box that may have cut off parts of the image you want to keep.
This added border is ignored when computing the color balance of the image. This instructs VueScan to enlarge the image beyond the edge of the crop box.
#Vuescan professional
Professional Option: This option is displayed when Crop | Lock aspect ratio is set to “Manual”. For instance, if you plan on printing an image on 4圆 paper, the aspect ratio should be 1.5 (6 divided by 4). If Crop | Lock aspect ratio is set to “Manual”, use this option to manually set the ratio of the longest edge to the shortest edge of the crop box. Professional Option: This option is always displayed. If set to “Manual”, the Crop | Aspect ratio option will appear and you can manually set the aspect ratio of the crop box. If set to “Image size”, the aspect ratio is computed using the Output | Printed size option. If set to “Off”, the aspect ratio isn’t locked. This ratio is always greater than one, and is the ratio of the longest edge to the shortest edge of the crop box. This option forces the crop box to keep a constant aspect ratio while one (or two) edges are being dragged by the mouse. If this option is set, multiple crop boxes will be automatically found if a preview contains multiple images.
#Vuescan plus
The angle is specified in degrees, plus or minus 45 degrees. Use this option to rotate the image by a small angle to correct for images that aren’t quite straight. If set to zero, the entire scanned area will be used. This is the size of the image area that you are cropping. Standard Option: This option is displayed when Crop | Crop size is set to “Manual”. These positions are relative to the upper left-hand corner of the preview area. This is the offset in the preview area of the start of the image data.
Standard Option: This option is always displayed. This option will also be selected if you have adjusted the crop size or position using the mouse on the preview window.Īnalyzes the image find the crop boxes automatically. Lets you enter all of the crop sizes manually. This option specifies the method used to determine the size of the cropped image: Crop | Buffer (%) can also be used to prevent inadvertent inclusion of data outside of the desired frame in color settings.) Second, this area is used to calculate color balance, histogram, and other settings.īe sure not to include the border around the edge of an image as part of the crop as this may cause these settings to be calculated incorrectly. First, this is the area of the scan that will be included in the output files. The area included in the crop is important in two ways.
#Vuescan full
The scan tab will use the data from the preview if a full scan has not yet been performed. Click the scan tab for VueScan to display the result of the cropping automatically. Hold down the shift key and click and drag anywhere within the crop area to reposition the entire crop area (or drag the center of the crop area with the mouse). Position the mouse over the blinking line and drag to reposition any edge. The crop area is displayed as a blue line with circles as crop handles that defines the area for subsequent VueScan operations. Note that VueScan also lets you change these values by using the mouse on the preview image.
#Vuescan manual
The crop tab lets you specify full automatic cropping, full manual cropping and a range of options between.
0 kommentar(er)
