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Negative values in Mat to byte conversion in java ? When i am converting mat to byte ,some bytes are negative is there a

Negative values in Mat to byte conversion in java ? When i am converting mat to byte ,some bytes are negative is there a

can i get 8 bit from byte using opencv? i have a byte array which i have obtained from mat of an image.is there some met

i checked it is unequal but the initial image of the byte array is of (440*442)size

The generated image has a gray strip on top

i have changed it.but i am still getting same blank images

Getting blank images when trying to construct image using byte array? I am using byte array to generate a grayscale png

//1. Convert Image to byte code ImgDemo im = new ImgDemo(); String path = "C:\Users\domin\Desktop\Sop\p

Now the image has changed into 8 bit depth still the same image is reconstructed.. Also when i am using Highgui.imdeco

Can you give me an example as to how to make 3 channel conversion to single channel?

I am extracting 8 bit binary value of each pixel and then applying random bit function to it and then changing it to byt

Distorted size of image obtained after construction from byte value? I am using Mat img = new Mat(440, 442, CvType.CV

i had a look into image properties details in which both the images has same high and width but the bit depth value is

Distorted size of image obtained after construction from byte value? I am using Mat img = new Mat(440, 442, CvType.CV

Distorted dimensions of image obtained after construction from byte value? I am using Mat img = new Mat(440, 442,

Distorted dimensions of image obtained after construction from byte value? I am using Mat img = new Mat(440, 442,

imread doesnot return the byte array of the image,which is required for further processing.

The image that i am getting using your solution is a noisy image.The input image i am taking is lena.png 256*256 graysca

I am using java to read an image and to generate its byte array on which few functions are performed ,now i want to obtain an image from this altered bytes.Is it possible in opencv.

ok sorry i didnt notice.Now its working thank you

Exception in thread "main" java.lang.UnsupportedOperationException: Provided data element number (35221) should be multi

I have taken a gray-scale image and have read it using java .then have taken 8 bits for each pixel of the image.further

I have taken a gray-scale image and have read it using java .then have taken 8 bits for each pixel of the image.further

i want to generate a gray-scale image from byte array,is it possible to do it with opencv ? I am using java to read an

thank you working as required

I want to reverse the bits of grayscale images using opencv,is there any inbuilt function which can be used

ok will look into it thank you.

i am trying to encrypt an image and it is the part of an algorithm that i am using.

i wish to reverse the bits of all the pixels of the image.for eg if the pixel value is 14 then then its binary would be

Are there any inbuild function similar to bitrevorder in opencv? I want to reverse the bits of grayscale images using op