public class ImageUtils
extends java.lang.Object
| Modifier and Type | Field and Description |
|---|---|
static int |
PIXEL_DPI |
| Constructor and Description |
|---|
ImageUtils() |
| Modifier and Type | Method and Description |
|---|---|
static java.awt.Dimension |
getImageDimension(java.io.InputStream is,
int type)
Return the dimension of this image
|
static int[] |
getResolution(javax.imageio.ImageReader r)
The metadata of PNG and JPEG can contain the width of a pixel in millimeters.
|
public static final int PIXEL_DPI
public static java.awt.Dimension getImageDimension(java.io.InputStream is,
int type)
is - the stream containing the image datatype - type of the picture: Workbook.PICTURE_TYPE_JPEG,
Workbook.PICTURE_TYPE_PNG or Workbook.PICTURE_TYPE_DIBpublic static int[] getResolution(javax.imageio.ImageReader r)
throws java.io.IOException
25.4/HorizontalPixelSize
and 25.4/VerticalPixelSize. Where 25.4 is the number of mm in inch.{horisontalPdi, verticalDpi}.
{96, 96} is the default.java.io.IOExceptionCopyright 2014 The Apache Software Foundation or its licensors, as applicable.