C libtiff错误:未配置旧式JPEG压缩支持
在Mac OS X上使用libtiff将TIFF转换为BMP时,我遇到以下错误:C libtiff错误:未配置旧式JPEG压缩支持,c,macos,tiff,bmp,libtiff,C,Macos,Tiff,Bmp,Libtiff,在Mac OS X上使用libtiff将TIFF转换为BMP时,我遇到以下错误: scannerdata.tif: Old-style JPEG compression support is not configured. scannerdata.tif: Sorry, requested compression method is not configured. 我目前正在Mac OS X中使用libtiff 我的tiff到bmp的实现: static void tifftobmp(cha
scannerdata.tif: Old-style JPEG compression support is not configured.
scannerdata.tif: Sorry, requested compression method is not configured.
我目前正在Mac OS X中使用libtiff
我的tiff到bmp的实现:
static void tifftobmp(char *colorMode){
DBG(1, ">> tifftobmp \n");
/* For files and file header */
char infile[PATH_MAX] = {0};
char outfile[PATH_MAX] = {0};
char tempfile[PATH_MAX] = {0};
TIFF *tifFile;
FILE *bmpFile, *tmpBitmapFile;
uint32 image_width, image_height, long_val, short_val;
/* For Colour table */
unsigned char padding;
unsigned short i;
unsigned char value;
/* For image information */
Image_Information *image_info;
image_info = (Image_Information *)malloc(sizeof(Image_Information));
sprintf(infile, TIFF_IMAGE_DATA);
sprintf(outfile, BMP_IMAGE_DATA);
sprintf(tempfile, TEMP_IMAGE_DATA);
/* Open necessary files */
tifFile = TIFFOpen(infile, "r");
if (!tifFile){
DBG(128, "Can't open %s for reading\n", infile);
TIFFClose(tifFile);
}
bmpFile = fopen(outfile, "wb");
if (!bmpFile){
DBG(128, "Can't open %s for writing\n", outfile);
fclose(bmpFile);
}
tmpBitmapFile = fopen(tempfile, "wb");
if (!tmpBitmapFile){
DBG(128, "Can't open %s for writing\n", tempfile);
fclose(tmpBitmapFile);
}
TIFFGetField(tifFile, TIFFTAG_IMAGELENGTH, &image_height);
TIFFGetField(tifFile, TIFFTAG_IMAGEWIDTH, &image_width);
image_info->img_height = image_height;
image_info->img_width = image_width;
/* Get Image Info Color */
if(strcmp(colorMode,"COLOR") == 0){
get_image_info_color(image_info);
}else if (strcmp(colorMode,"GRAY") == 0){
get_image_info_gray(image_info);
}else if(strcmp(colorMode,"MONO") == 0){
get_image_info_mono(image_info);
}
/* Set Header */
fwrite("BM", 1, 2, bmpFile); /* Signature */
long_val = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + image_info->img_scansize * image_info->img_height;
fwrite(&long_val, 4, 1, bmpFile); /* Size in bytes of the bitmap file */
short_val = 0;
fwrite(&short_val, 2, 1, bmpFile); /* Reserved, set as 0 */
fwrite(&short_val, 2, 1, bmpFile); /* Reserved, set as 0 */
if(strcmp(colorMode,"COLOR") == 0){ /* Offset of the image from file start */
long_val = 54;
}else{
long_val = 54 + (4 * (1 << image_info->img_bits_per_pixel));
}
fwrite(&long_val, 4, 1, bmpFile);
long_val = sizeof(BITMAPINFOHEADER); /* Size of BMPInfoHeader structure */
fwrite(&long_val, 4, 1, bmpFile);
fwrite(&image_info->img_width, 4, 1, bmpFile);
fwrite(&image_info->img_height, 4, 1, bmpFile);
short_val = 1; /* Number of image planes */
fwrite(&short_val, 2, 1, bmpFile);
if(strcmp(colorMode,"MONO") == 0){ /* Number of bits per pixel */
short_val = image_info->img_bits_per_pixel;
}else if (strcmp(colorMode,"COLOR") == 0){
short_val = image_info->img_bits_per_pixel;
}else if (strcmp(colorMode,"GRAY") == 0){
short_val = image_info->img_bits_per_pixel;
}
fwrite(&short_val, 2, 1, bmpFile);
long_val = 0; /* Compression method */
fwrite(&long_val, 4, 1, bmpFile);
long_val = 0; /* Size of uncompressed image in bytes */
fwrite(&long_val, 4, 1, bmpFile);
long_val = 0; /* X resolution, pixels per meter */
fwrite(&long_val, 4, 1, bmpFile);
long_val = 0; /* Y resolution, pixels per meter */
fwrite(&long_val, 4, 1, bmpFile);
if(strcmp(colorMode,"COLOR") == 0){ /* Size of colour table */
long_val = 0;
}else{
long_val = 1 << image_info->img_bits_per_pixel;
}
fwrite(&long_val, 4, 1, bmpFile);
long_val = 0; /* Number of important colours */
fwrite(&long_val, 4, 1, bmpFile);
/* Colour table */
if(strcmp(colorMode,"MONO") == 0){
value = 0xFF;
padding = 0;
/* white */
fwrite(&value, 1, 1, bmpFile); /* R component */
fwrite(&value, 1, 1, bmpFile); /* G component */
fwrite(&value, 1, 1, bmpFile); /* B component */
fwrite(&padding, 1, 1, bmpFile); /* padding */
/* black */
value = 0x00;
fwrite(&value, 1, 1, bmpFile); /* R component */
fwrite(&value, 1, 1, bmpFile); /* G component */
fwrite(&value, 1, 1, bmpFile); /* B component */
fwrite(&padding, 1, 1, bmpFile); /* padding */
}else if (strcmp(colorMode,"GRAY") == 0){
padding = 0;
for ( i = 0; i <= 255; i++ ){
fwrite(&i, 1, 1, bmpFile); /* R component */
fwrite(&i, 1, 1, bmpFile); /* G component */
fwrite(&i, 1, 1, bmpFile); /* B component */
fwrite(&padding, 1, 1, bmpFile); /* padding */
}
}
/* Read and write image */
if(strcmp(colorMode,"MONO") == 0){
read_mono_image(tifFile, tmpBitmapFile, image_info);
}else if(strcmp(colorMode,"GRAY") == 0){
read_gray_image(tifFile, tmpBitmapFile, image_info);
}else if(strcmp(colorMode,"COLOR") == 0){
read_color_image(tifFile, bmpFile, image_info);
}
if(strcmp(colorMode,"COLOR") != 0){
fclose(tmpBitmapFile);
flip_image(image_info, bmpFile);
}
fclose(bmpFile);
TIFFClose(tifFile);
DBG(1, "<< tifftobmp \n");
}
static void tifftobmp(char*colorMode){
DBG(1,“>>tifftobmp\n”);
/*用于文件和文件头*/
字符填充[PATH_MAX]={0};
字符输出文件[PATH_MAX]={0};
char tempfile[PATH_MAX]={0};
TIFF*tifFile;
文件*bmpFile,*tmpBitmapFile;
uint32图像宽度、图像高度、长值、短值;
/*颜色表*/
无符号字符填充;
无符号短i;
无符号字符值;
/*图像信息*/
图像信息*图像信息;
图像信息=(图像信息*)malloc(图像信息);
sprintf(内嵌、TIFF图像数据);
sprintf(输出文件、BMP_图像_数据);
sprintf(临时文件、临时图像数据);
/*打开必要的文件*/
tifFile=TIFFOpen(填充,r“);
如果(!tifFile){
DBG(128,“无法打开%s进行读取\n”,填充);
TIFFClose(tifFile);
}
bmpFile=fopen(outfile,“wb”);
如果(!bmpFile){
DBG(128,“无法打开%s进行写入”,输出文件);
fclose(bmpFile);
}
tmpBitmapFile=fopen(tempfile,“wb”);
如果(!tmpBitmapFile){
DBG(128,“无法打开%s进行写入”,tempfile);
fclose(tmpBitmapFile);
}
TIFFGetField(tifFile、TIFFTAG_图像长度和图像高度);
TIFFGetField(tifFile、TIFFTAG_图像宽度和图像宽度);
图像信息->图像高度=图像高度;
图像信息->图像宽度=图像宽度;
/*获取图像颜色信息*/
如果(strcmp(颜色模式,“颜色”)==0){
获取图像信息颜色(图像信息);
}否则如果(strcmp(彩色模式,“灰色”)==0){
获取图像信息灰度(图像信息);
}否则如果(strcmp(彩色模式,“单声道”)==0){
获取图像信息单声道(图像信息);
}
/*设置标题*/
写(“BM”,1,2,BMP文件);/*签名*/
long\u val=sizeof(BITMAPFILEHEADER)+sizeof(bitmapinfo header)+image\u info->img\u scansize*image\u info->img\u height;
fwrite(&long_val,4,1,bmpFile);/*位图文件的字节大小*/
短值=0;
fwrite(&short_val,2,1,bmpFile);/*保留,设置为0*/
fwrite(&short_val,2,1,bmpFile);/*保留,设置为0*/
如果(strcmp(colorMode,“COLOR”)==0){/*图像从文件开始的偏移量*/
long_val=54;
}否则{
long_val=54+(4*(每像素1个img_比特));
}
写入(&long_val,4,1,bmpFile);
long_val=sizeof(BitMapInfo头);/*BMPInfoHeader结构的大小*/
写入(&long_val,4,1,bmpFile);
写入(图像信息->图像宽度,4,1,bmp文件);
写入(图像信息->图像高度,4,1,bmp文件);
short_val=1;/*图像平面数*/
fwrite(&short_val,2,1,bmpFile);
if(strcmp(colorMode,“MONO”)==0{/*每个像素的位数*/
short\u val=图像信息->每像素图像位;
}否则如果(strcmp(颜色模式,“颜色”)==0){
short\u val=图像信息->每像素图像位;
}否则如果(strcmp(彩色模式,“灰色”)==0){
short\u val=图像信息->每像素图像位;
}
fwrite(&short_val,2,1,bmpFile);
long_val=0;/*压缩方法*/
写入(&long_val,4,1,bmpFile);
long_val=0;/*未压缩图像的大小(字节)*/
写入(&long_val,4,1,bmpFile);
long_val=0;/*X分辨率,每米像素数*/
写入(&long_val,4,1,bmpFile);
long_val=0;/*Y分辨率,每米像素数*/
写入(&long_val,4,1,bmpFile);
if(strcmp(colorMode,“COLOR”)==0{/*颜色表的大小*/
long_val=0;
}否则{
long_val=每像素1个img_位;
}
写入(&long_val,4,1,bmpFile);
long_val=0;/*重要颜色的数量*/
写入(&long_val,4,1,bmpFile);
/*颜色表*/
如果(strcmp(彩色模式,“单声道”)==0){
值=0xFF;
填充=0;
/*白色的*/
fwrite(&value,1,1,bmpFile);/*R分量*/
fwrite(&value,1,1,bmpFile);/*G分量*/
fwrite(&value,1,1,bmpFile);/*B组件*/
fwrite(&padding,1,1,bmp文件);/*padding*/
/*黑色的*/
值=0x00;
fwrite(&value,1,1,bmpFile);/*R分量*/
fwrite(&value,1,1,bmpFile);/*G分量*/
fwrite(&value,1,1,bmpFile);/*B组件*/
fwrite(&padding,1,1,bmp文件);/*padding*/
}否则如果(strcmp(彩色模式,“灰色”)==0){
填充=0;
对于(i=0;i请查看“nmake.opt”中Libtiff的源代码
因此,默认情况下,JPEG支持未启用。我想您的代码是可以的,但不相关,因为您尝试转换的文件似乎不受苹果版本的libtiff支持。一个选项是安装Macports,并使用它安装tiff
,然后根据/opt/local/lib/libtiff.a
静态编译(可能使用其他链接器标志Xcode设置)。如果这不起作用,那么您必须自己编译libtiff
。@特洛伊木马我目前有usr/local/lib/libtiff.5。dylib@trojanfoe这是安装libtiff的正确命令吗?sudo port install lcms-install lcms。这还将安装jpeg、zlib、tiff抱歉,我不知道;为什么要lcms?@特洛伊木马安装tiff
#
# Uncomment and edit following lines to enable JPEG support.
#
#JPEG_SUPPORT = 1
!IFDEF JPEG_SUPPORT
LIBS = $(LIBS) $(JPEG_LIB)
EXTRAFLAGS = -DJPEG_SUPPORT -DOJPEG_SUPPORT $(EXTRAFLAGS)
!ENDIF