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LAST UPDATED: 21 Apr, 2022 90 PEOPLE USED

Answer By: Glendale Green

**https://la.mathworks.com/matlabcentral/answers/452399-using-uint8-and-double**I have a input image of size 800*800 and of type

**uint8**. When i do convolution with a 5*5 filter, it produces me a result of type**Double**. With the result of convolution, I have to perform some other operations and whether I must**convert**my convolution output to**uint8**? i have many variables which stores results of many operation.See Tags:**Free Converter**Answer By: Teresa Hamberlin

**https://itectec.com/matlab/matlab-imshow-using-double-or-uint8-rgb-values-confusing/****MATLAB:**Imshow using**double**or**uint8**RGB values**–**confusing. My guessing is that imshow can be used with 2 types of RGB data. RGB values are between [0 255] and they have to be**uint8**. RGB is 400 x 650**uint8**rather than 400 x 650 x 3**uint8**. So I know it is an indexed image. RGB = ind2rgb (X,map) % And here RGB is already '**double**'!See Tags:**Free Converter**Answer By: Lawrence Greene

**https://www.mathworks.com/help/matlab/ref/uint8.html**Creation. Some array creation functions allow you to specify the data type. For instance, zeros(100,'

**uint8**') creates a 100-by-100 matrix of zeros of type**uint8**. If you have an array of a different type, such as**double**or single, then you can**convert**that array to an array of type**uint8**by using the**uint8**function.See Tags:**Free Converter**Answer By: Nicki Maniece

**https://stackoverflow.com/questions/30757896/how-to-convert-image-from-double-to-uint8-in-matlab**The im2uint8 function assumes that your

**double**image is scaled to the range [0,1]. If your image has values larger than 1 or smaller than 0, these values will be clipped. See the following example: im2uint8 ( [-1 0 0.5 1 2]) ans = 0 0 128 255 255. The solution is to scale the input image to [0,1] by subtracting the minimum value and dividing bySee Tags:**Free Converter**Answer By: Odis deaver

**https://au.mathworks.com/matlabcentral/answers/419608-typecasting-a-matrix-of-200x8-uint8-to-double**I am typecasting data from

**uint8**to**double**so I am using typecast function. I have matrix of 200x8**uint8**which want to**convert**it into**double**. So if I use a for loop like below.See Tags:**Free Converter**Answer By: George Wirsing

**https://www.reddit.com/r/matlab/comments/7ufgoy/element_multiplication_between_double_and_uint8/**just use the "

**double**" function. if you have your "cdata" variable that came from an image, that is a**uint8**that is [numRows, numCols, 3], do: doubleData =**double**(cdata); im2double looks like a function**matlab**has to help out with whether your dealing with data in the 0-255 range or 0-1 range. if you were to have used im2double, you couldSee Tags:**Free Converter**Answer By: James Dehart

**https://fr.mathworks.com/matlabcentral/answers/22785-double-vs-uint8-input-using-imshow-function**You can

**convert uint8**and uint16 data to**double**precision using the**MATLAB**function,**double**. However,**converting**between storage classes changes the way**MATLAB**and the toolbox interpret the image data. If you want the resulting array to be interpreted properly as image data, you need to rescale or offset the data when you**convert**it.See Tags:**Free Converter**Answer By: William Hickey

**https://in.mathworks.com/matlabcentral/answers/307586-how-to-covert-int32-or-int16-to-uint8**Copy to Clipboard. If you want to

**convert**the values from the int16 or int32 array into**uint8**, use the**uint8**function. Values in the original array that are too small or too large to be stored in**uint8**will saturate at intmin ('**uint8**') or intmax ('**uint8**') respectively. x = ...See Tags:**Free Converter**Answer By: Frank Nauer

**https://de.mathworks.com/matlabcentral/answers/108807-how-to-convert-a-matrix-of-double-to-int**I need to

**convert**my matrix [648x2400**double**] into integers value to use a mRMR function, but I do not know how to do that. I have tried to**convert**by**uint8**(matrix) or int8(matrix) but it does not give integersSee Tags:**Free Converter**Answer By: Renee Young

**https://itectec.com/matlab/matlab-convert-double-into-unit8-with-out-changing-pixels-value/****MATLAB: Convert double**into unit8 with out changing pixel’s value. in above code rgb (type 256*256*3**uint8**) is main image, S (type 256*256*3**double**) is a image which is output image after doing some pixel operation now for subtracting image i have to**convert**one of them ,and make both of them same type image so i**convert**S into S1 but at hereSee Tags:**Free Converter**Answer By: Elaine Brown

**https://la.mathworks.com/matlabcentral/answers/51044-conversion-from-uint8-to-ascii-to-number**From the buffer in the Speedgoat i receive a

**uint8**array, that i want to**convert**to a the corresponding ascii value and then**convert**the new array into one**double**. For example**uint8**: [48 46 56 52] -> [0 . 8 4] -> 0.84See Tags:**Free Converter**Answer By: Nola Rockstad

**https://es.mathworks.com/help/matlab/ref/im2double.html**Note. Many

**MATLAB**® functions expect pixel values to be in the range [0, 1] for truecolor images of data type single or**double**.The im2double function does not rescale the output when the input image has single or**double**data type. If your input image is a truecolor image of data type single or**double**with pixel values outside this range, then you can use the rescale function to scale ...See Tags:**Free Converter**Answer By: Renetha Gardner

**https://warinse.covid.campania.it/Converting_To_Uint8_Python.html**You can

**convert uint8**and uint16 data to**double**precision using the**MATLAB**function,**double**. Thanks for any help!. If you want to**convert**float to integer variable type in Python. Since images are just an array of pixels carrying various color codes. 6 ...See Tags:**Free Converter**Answer By: Nelson Rivera

**https://www.cs.utah.edu/~germain/PPS/Topics/Matlab/uint8.html**It is not the case in every programming language (nor is it always true in

**Matlab**). In C we WILL have to worry about this.**uint8**variables use the integer math rules!**UINT8**Overflow . Overflow is defined as having "too much information" to store in the given size of bucket. As**uint8**'s can only support numbers from 0 to 255, we have a problem.See Tags:**Free Converter**Answer By: James Hudson

**https://nejakeadd.com/matlabcentral/answers/233674-why-an-image-is-converted-to-double-using-i-im2double-i-in-matlab67ktpn202966x****Convert**the image to**double**with im2double() function. Get the power. Then**convert**the**double**image to**uint8**by the function im2uint8(). %---- s=imread. You can**convert uint8**and uint16 data to**double**precision using the**MATLAB**function,**double**. However,**converting**between storage classes changes the way**MATLAB**and the toolbox interpret theSee Tags:**Free Converter**Answer By: Andrea cravener

**https://itectec.com/matlab/matlab-image-display-with-uint8-and-double/**Because floating-point images are assumed to contain values between 0 and 1 the

**double**image displays those colors as black and white. But for the**uint8**image the values are assumed to be from 0 to 255, so those two colors are shown as black and very-dark-gray (indeed, the symbol is just visible in your screenshot).See Tags:**Free Converter**Answer By: Hope Calabro

**https://math.jhu.edu/~shiffman/370/help/techdoc/ref/uint8.html****Convert**to unsigned 8-bit integer. Syntax. i =**uint8**(x) Description. i =**uint8**(x) converts the vector x into an unsigned 8-bit integer.x can be any numeric object (such as a**double**).The elements of an**uint8**range from 0 to 255. The result for any elements of x outside this range is not defined (and may vary from platform to platform). If x is already an unsigned 8-bit integer,**uint8**has no ...See Tags:**Free Converter**Answer By: Bertie Thacker

**https://fr.mathworks.com/matlabcentral/answers/595522-how-to-convert-double-to-uint8**Translate. Try this: % First

**convert**G to a 3-D variable. G = cat (3, G, G, G); % Now**convert**it to**uint8**. It will clip values outside the range 0-255, and will round values in the range. G =**uint8**(G);See Tags:**Free Converter**Answer By: Carol Frith

**https://de.mathworks.com/matlabcentral/answers/8241-convert-image-from-uint8-to-double**The function im2double scales the output

**double**-precision values to the range [0.0, 1.0]. The function**uint8**does not do this scaling.See Tags:**Free Converter**

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