These 2 files are TIFF files but the file type is different, one is TIFF IMAGE and TIFF File. Can someone tell me the difference between them? I can't find the exact reason.
EDIT:
After enabling file extension
Enhancing in-house/internal software, that creates very basic PDF files, to handle images. Using JPEG seems to be the easiest place. Inserting JPEG image into Xobject stream by opening Image file and performing Reads from image file and Writes into PDF file. However, when viewing PDF file, getting errors on Image length. Appears PDF JPEG Image stream contents is not the exact same format as the Image file itself. I'm not using any PDF development tools to build the PDF file, just developing code myself to do this.
Does anyone know exactly how to add JPEG image file contents into Xobject stream? Appears to be or needs to be a conversion or something.
I have a weird problem in matlab. I have code that takes in a directory of jp2 files and converts all of them to either tiff, png, or a jpg file. Then it puts these files in a new directory. The user can specify how big they want the file to be in terms of how many pixels are used (EX: 1:3:end is every three pixels). This code works perfectly for the png and tiff conversions.
With the jpg conversion there is no error whatsoever but when I go to click on the jpeg file in the new folder (which it does go to at least) It says "Windows Photo Viewer can't open this picture because the file appears to be damaged, corrupted, or is too large" I tried opening the pictures in other viewers but it said the same thing. All of the png and tiff pictures opened fine.
Some help would be greatly appreciated, thanks!
Edit: I noticed when I call imshow on the location of the jpeg file it actually does show up in matlab. It still does not show up in any image viewers though
I searched the internet for the basic formats of image files (e.g. .jpg, .png, .gif) as there is a specific format for .doc, .pdf etc. But didn't got anything relevant. And today I also came with an .bin image format. BIN signifies that the image is in the Binary format. So, what is the Internal format of .jpg image file. And How is it different from .bin (Binary) format. Because everything is Basically saved in Binary Form. And How is BITMAP Image different from .jpg format.
if you open the files in notepad or change the jpg to .txt and a exe to .txt you will see the first X amount of bytes defines what type of file it is etc. I have never looked into where the "standard" is but as you will see all JPEGS start with a specific byte and EXE start with a specific byte no matter what the content
Also JPEG is a licensed compressed form of an image and BMP is Microsoft Windows version of an image(with little or no compression I believe. png is open source or GPL licensed and technically your files do not need to be "licensed" to convert to JPEG. This is the same as a .MP3 vs a.OGG in terms of music
New to Matlab, so sorry if this is a silly question. I'm filtering a series images for my research. I'm not having a problem with the actual image processing, it's when I go to save the modified images that I run into trouble. For some reason, I can only save the modified images using imwrite as .gif files. If I try to save them as .jpg, .bmp, etc., the file does not appear in the working folder. The corresponding generic file appears, but the actual .jpg does not. Additionally, when I use imread to reopen the midified files (that actually saved as .gifs), the image is just black. But, if I open the .gif file outside Matlab, it appears as expected. Code below.
close all
N=90;
IMAGES=cell(1,N); %creates a cell to store image data
FNAMEFMT='20110805115033(1)_%d.jpg';
for i=1:N
IMAGES{i}=imread(sprintf(FNAMEFMT,i)); %reads original images into IMAGES
end
RESULT=cell(1,N); %to store modified/filtered images
for i=1:N
gray=rgb2gray(IMAGES{i}); %converts to grayscale
binary=im2bw(gray,.5); %converts to bw
filter=bwareaopen(binary,35); %removes small features
RESULT{i}=filter; %saves modified image in RESULTS
end
for i=1:N
WRITEFMT='filter_%d';
imwrite(RESULT{i},sprintf(WRITEFMT,i),'gif'); %writes RESULTS as .gif
end
If I try to save them as .jpg, .bmp, etc., the file does not appear in the working folder.
You need to change
WRITEFMT='filter_%d';
to
WRITEFMT='filter_%d.jpg';
The files you are outputting are jpeg files (as per the imwrite argument 'jpg' instead of 'gif'), but they don't have a file extension. If you manually add the extension, they open as jpgs.
For the black gif, see if this helps.
Once you export as jpg, viewing them works
imshow(imread('filter_1.jpg'))