fitiolib for MATLAB出错：无法创建命名文件

Question

我需要编写一组图像，这些图像是在for循环中计算的。如果我使用sprintf定义路径，则会收到错误

Error using fitsiolib
CFITSIO library error (105): couldn't create the named file

Error in matlab.io.fits.createFile (line 32)
fptr = fitsiolib('create_file',filename);

Error in fitswrite (line 67)
fptr = fits.createFile(filename);

Error in Calculation_correction_image (line 23)
fitswrite(image_calculated, t);

您对如何避免这种情况有任何建议吗？以下是计算图像的代码部分：

k = 0;
for j=0:40
    image_calculated = (image_summed_start - (image_correction*j))/image_summed_start;
    t = sprintf('image_projection_%02i.fits',j)
    A = j
    fitswrite(image_calculated, t);
end