我试图制作一个读取图像的程序。并且在绘制出来后,MS中的图像表现出色,但每个单元格都是像here一样的单个像素。我想我很安静,但我看不出问题,它不会让细胞着色,有人可以帮助我吗?
以下是您可以随意使用的代码。
public class Engine {
ArrayList<Color> arr = new ArrayList<Color>();
private int xx;
private int yy;
FileOutputStream out;
HSSFSheet sheet;
HSSFWorkbook wb;
public void process() throws AWTException, IOException{
wb = new HSSFWorkbook();
sheet = wb.createSheet();
wb.setActiveSheet(0);
BufferedImage img = null;
try {
img = ImageIO.read(new File("res/images.jpg"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("img file not found");
}
for(int x=0;x<img.getWidth();x++){
xx++;
for(int y=0;y<img.getHeight();y++){
yy++;
int rgb = img.getRGB(x, y);
Color c = new Color(rgb);
printPixelARGB(rgb);
arr.add(c);
System.out.println("x: "+ x + " y:" + y +" color: " + c);
}}
out = new FileOutputStream("pic.xls");
wb.write(out);
out.close();
}
public void printPixelARGB(int pixel) {
int alpha = (pixel >> 24) & 0xff;
int red = (pixel >> 16) & 0xff;
int green = (pixel >> 8) & 0xff;
int blue = (pixel) & 0xff;
HSSFPalette palette = wb.getCustomPalette();
HSSFCellStyle style = wb.createCellStyle();
HSSFRow row = sheet.createRow((short) yy);
HSSFCell cell = row.createCell((short) xx);
cell.setCellValue(yy);
style.setFillForegroundColor(HSSFColor.LIME.index);
style.setFillBackgroundColor(HSSFColor.LIME.index);
palette.setColorAtIndex(HSSFColor.LIME.index, (byte) red, (byte) green, (byte) blue);
cell.setCellStyle(style);
}
}
答案 0 :(得分:0)
我可以通过自己解决这个问题
解决方案是:
public class Engine {
ArrayList<Color> arr = new ArrayList<Color>();
private int xx;
private int yy;
FileOutputStream out;
HSSFSheet sheet;
HSSFWorkbook wb;
Row r;
public void process() throws AWTException, IOException{
wb = new HSSFWorkbook();
sheet = wb.createSheet();
wb.setActiveSheet(0);
BufferedImage img = null;
try {
img = ImageIO.read(new File("res/images.jpg"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("img file not found");
}
for(int x=0;x<img.getWidth();x++){
xx++;
yy=0;
r = sheet.createRow(xx);
for(int y=0;y<img.getHeight();y++){
yy++;
int rgb = img.getRGB(x, y);
Color c = new Color(rgb);
printPixelARGB(rgb);
arr.add(c);
System.out.println("x: "+ x + " y:" + y +" color: " + c);
}}
out = new FileOutputStream("pic.xls");
wb.write(out);
out.close();
}
public void printPixelARGB(int pixel) {
int alpha = (pixel >> 24) & 0xff;
int red = (pixel >> 16) & 0xff;
int green = (pixel >> 8) & 0xff;
int blue = (pixel) & 0xff;
Cell c = r.createCell(yy);
HSSFCellStyle style = wb.createCellStyle();
HSSFColor col = setColor(wb, (byte)red, (byte)green,(byte)blue);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setFillForegroundColor(col.getIndex());
c.setCellStyle(style);
}
public HSSFColor setColor(HSSFWorkbook workbook, byte r,byte g, byte b){
HSSFPalette palette = workbook.getCustomPalette();
HSSFColor hssfColor = null;
try {
hssfColor= palette.findSimilarColor(r, g, b);
if (hssfColor == null ){
palette.setColorAtIndex(HSSFColor.LAVENDER.index, r, g,b);
hssfColor = palette.getColor(HSSFColor.LAVENDER.index);
}
} catch (Exception e) {
System.out.println("error");
}
return hssfColor;
}
}