I have a text file in sd card named file.txt which contains a hex values of a JPG image.
These values is received from a hardware camera. Now i have to read this text file from sd card and then need to construct a JPG image from these hex values.
I tried over 1 week but couldn't able to construct the JPG image.
Can anyone help me???
N:B: My camera is "LinkSprite JPEG Color Camera"
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I want to extract all frames(images) of an animated .gif file as bitmap or Drawable or any common type of image and store all images in an array in android. How i do it?
please help me.
I have many images in RGB format. I need to convert them to CMYK format and save them (no need to display the CMYK image on screen) to a file. I found many answers for converting RGB value to CMYK value but I dont know what to do with those CMYK values.I need to convert the whole RGB file and save it as CMYK file. How do I do that ?
I am trying to write text on an image and then save it to images.
I have tried
first answer of
Add text to image in android programmatically
and
first answer of
Generate a image with custom text in Android
I also tried adding text to relative layout, but I could not get it working.
using first two answer I was able to save image to gallery, but the saved images are blurred(no clear).
is there any other technique to save image? or can I improve anything?
Quality of bitmap(image) is maintained specially with this:
public boolean compress (Bitmap.CompressFormat format, int quality, OutputStream stream)
here :
quality Hint to the compressor, 0-100. 0 meaning compress for small size, 100 meaning compress for max quality. Some formats, like PNG which is lossless, will ignore the quality setting
I have a bitmap surface with RGBA8888 format that I can draw image on. Now, I would like to add some letters to the image. I figure, I need a font which is stored in RGBA8888 bitmap format. I then need to load the font into memory and choose the letter to display from the font and then write it to bitmap. But How can I find or extract RGBA8888 arrays for a font from TrueType font or any other format?
I am using ImageView to showing the .tiff formatted image, but I am getting error of NullPointerException.
I am converting the image file into byte array and then setting it in ImageView.
How can I show this tiff file?
You cannot set the tiff image on a ImageView in android directly. http://code.google.com/p/tiffonandroid/source/browse/ this is a sample tiffviewer. This might help you
Tiff has images stored as rows of bytes starting at defined offsets. So you can easily retrieve single rows to build the full image.
If you open any tif file in hex editor you will see that first 4 bytes mark tiff by code. And next 4 bytes give offset for metadata about tif image.
Use random access file to open image tif file, then seek the offset and you land into metadata space.From here you can pick offset of required image rows. Then go and get it..
If we needed full load of image like jpeg or BMP, then collect and combine all these rows after decompression, if any. Then you will get the full image